I'll try to keep this from turning into a novel, but... no promises
Back in November, I ended up in the hospital with severe stomach pain and an inflamed small intestine. Now, I've had stomach issues my entire life, but nothing even remotely close to this. After several days on a liquid diet and IV antibiotics, my condition improved, and I went home. I had a number of scans, as well as a colonoscopy and an MRE of my intestines. Everything turned up clear. No one ever mentioned celiac or gluten intolerance as a potential issue.
Now, the problem is, I never stopped having that stomach pain. It diminished after I got out of the hospital, but it never completely went away. It's been kicking around with varying intensity since November. In early June, I went back to my GI and told her I wasn't feeling much better. She noted that my small intestine still felt swollen to the touch, gave me a bag of different medicines to try, and sent me for follow-up bloodwork. My blood work showed no signs of elevated inflammation markers, so they basically told me to try the medicines, go on my merry way, and call if I had any problems.
After being in pain for so many months, my level of frustration was high. No one could tell me what was wrong with me! My parents, who are both gluten-free by choice (no intolerance or celiac), have been begging me to try giving up gluten for months. I resisted mightily (bagels and pizza are my favorite foods), but by last Friday, I had become so desperate, I decided to just try it. So I stopped eating gluten cold turkey. It's been a week and my stomach pain has greatly diminished. I had several pain-free days this week, and I can't remember the last time I had a pain-free day, never mind more than one in a row. I've definitely made a few missteps (Chinese/Japanese last night was a dumb decision), but overall, I feel great.
My question is - I haven't been formally diagnosed with anything. Should I go through the steps to figure out if I actually have a gluten intolerance, or can I just trust this anecdotal evidence? I've basically thrown my hands up as far as Western medicine goes at this point, but I can see that there would be importance in trying to figure out if this is actually the problem or not. Suffice to say, it's only been a week, so maybe eventually just avoiding gluten won't work if the issue isn't actually gluten-related.
I also have a couple of other questions - I've noticed that I've felt more dehydrated and headachy than usual. Is this normal for the early stages of gluten freedom? I'm trying to work on upping my water intake, which I should have been doing anyway. My one other concern is that long distance running (marathons and the like) is my favorite hobby, and I'm wondering how people deal with being gluten-free and still maintaining necessary levels of carbs and things like that. I was SUCH a carb-a-holic, and all of it in the form of breads and whatnot, so this is a big change for me.
Thanks in advance!