you should be manufacturing a lot of vitamin K in your stomach, or at least changing it from K1 to K2 (or vice versa, I forget.) In any case, the important thing is that your gut should be doing that for you provided you're eating enough of the right foods. If it's not, then you could be lacking the proper bacteria necessary to do so. I know small intestine bacterial overgrowth is a thing. It's also possible you have some sort of intestinal parasite. I hear they're actually common, that most people have a few, however, they aren't supposed to cause issues unless there's too many or something. Being a celiac it's possible that things that wouldn't bother most people intestinally, will bother you a lot more.
Another possibility is that you are more sensitive to gluten than you realize. Most manufactured gluten-free grain products have trace amounts of gluten that, from a recent study posted here, indicates that refractory celiacs (celiacs who don't get better being 'regular' gluten free), can actually get better by avoiding everything except meat, veggies and fruits. When was the last time you had a biopsy? If you are a refractory celiac, you will still have intestinal damage. This would explain low vit K and vit D and any other nutritional deficiency you may still have.
As for the vit D, go outside in the rain and cloudy weather in shorts and t-shirt in the summer anyways. I would also double your vit D intake, especially during winter. It's obviously an issue for you if you haven't been able to put your levels up.
I have suffered from depression for over a decade, and I wish I had good advice for you with dealing it. My best advice is to find a medical reason for it, which you're doing :-p. It might really be as simple as you say, a vit D problem. That said, current depression medication isn't just a mask, it essentially does increase levels of neurotransmitters, however in light of the low effectiveness of anti-depressants, depression clearly isn't just low serotonin and dopamine. Some people swear by it, others notice little change or don't like the change that does happen, can often lead to apathy, which, as far as I'm concerned, is just another form of depression.
General depression guidelines involve excersising regularly, and making sure you are social.
Fun fact: wellbutrin started as a smoking cessation aid, I believe it's still used as that too. Another fun fact? Smokers are less likely to be depressed than non-smokers. Maybe nicotine is good for you on some level, or maybe we should all take 'smoke breaks' and socialize a little more.
I've actually not been so depressed lately, and I was actually happy when I found out I was a celiac, for a little while at least, because now I could do something about my physical and emotional health.
Personally though, befor the celiac disease, my husband (then bf) helped me a lot by changing my mentality and ideology. I always felt guilty because I wasn't accomplishing, or because I tried and inevitably failed because I'd simply stay in bed or at home due to lack of motivation. (I've always been pretty up and down, not bipolar, but not constantly depressed...was probably the gluten.) I was raised with expectations that I'll have a career that will make a difference in the world, and the idea that if I weren't changing the world somehow, or excelling in some niche, I was being selfish and wasteful and lazy. Well, my bf was never raised with those expectations. He lives for what he likes, and he is guilt free when all his free time he plays video games. He works to make money so he can be happy, and he quite frankly didn't understand my ingrained ideas of achievement. I know some people, (my parents included) think I'm morally a bad person now due to the laziness, but the reality check now is that I'm not a guilt-ridden, always failing, depressed person anymore, just a generally unenthusiastic person who knows her own threshold of responsibility well.
As I get better, pushing my limits in regards to my activity levels is something I'm going to probably do. But I know when I'll get there because I'll get that desire to do something. I'm prepared for never getting that back though, but knowing I have a medical problem that all this likely stems from, gives me something that being depressed has taken away: hope. So double or triple your vit D, don't miss doses, go outside, try light therapy, try an antidepressant, try taking hydrochloric acid with that digestive enzyme, get a biopsy done, look into a more restricitive diet, get tested for SIBO, get tested for general parasites, try a no-sugar diet...there are a lot of things you can still try!
That's interesting about the intestinal parasite I have sometimes wondered if had something like that , but I haven't really looked into it much , I went to the Caribbean 5 years ago and some problems started after that , it's probably not connected but I have lately thought about if I did pick something up . My doctor ruled out refractory celiac disease in 2011 , I last had a endoscopy and biopsy at the end of 2010 , my villi was okay all the test showed was mild gastritis . Also my serology levels or test have always been normally , my gastro doctor did check again recently and said the tests were fine as usual indicating good control of the disease It's odd why I don't absorb Vitamin D very well , I need to go to a sunny country for a few months !
Can you still get Vitamin D when the sun is not out on cloudy and rainy days ?
Sorry to hear you have suffered from depression for a over a decade I agree it's best to find the reason , I want the problems to improve but not just by themselves just in case the problem starts up again in the future than I would know what to do to fix it . I think it could be too do with Vitamin D but I'm not 100 % sure there are also many other reasons that I think could be the cause of my depression. It's very difficult to understand all the neurotransmitters and serotonin and dopamine . I have read a little bit but don't really understand.
I would like to do exercise again , but with stomach and back problems I can't really do much , and walking is difficult for me because of my anxiety problems I really don't like going out . I was thinking of getting an exercise bike as I think that might be okay for me I'm not sure really . I don't smoke but that's interesting I also heard smoking lowers your chance of getting celiac disease too late now though ! I'm not very social mainly because of my stomach hurting , but this year I have tried to go out more , but I don't really like to socialise that much
Glad you haven't been as depressed lately , that's a good way to look at it That must be difficult to have expectations like that , it's difficult for anyone to make a difference to the world . I play video games I think it's ridiculous people could think that about you , a bad person would not come on Celiac message boards and give helpful advice ! But it's good you changed your mentality good luck in the future ! Thanks for the advice I will get the doctor's to do some of the tests , and try some of the other things . I have tried some things with the diet and did exclusion diets etc but nothing really helped , if anything I need to make my diet less restrictive