Ok, time to step it up a notch. You should NOT be messing your pants once a month. You have to be much more vigilant about gluten cross contamination. If you are getting enough to make you that sick, that often- then you are damaging your body.
So...first, take a close look at home. Do you have shared condiments? Cutting boards? Drawers, cupboards or utensils? Do you have your own toaster? Everything that is for your use needs to have never been in contact with gluten. If necessary keep all of your stuff in a big rubber tote with a lid.
What about lotions, beauty products, shampoos? Toothpaste? Gluten lurks in many of them.
Are you eating out? Stop. Until you get this under control, the risk is too great.
Do you prepare gluten-containing foods for others in the house? Wear gloves and a mask. Or better yet- make the house gluten free. It isn't that hard if you just make whole foods. Other than bread, they won't even notice.
Is hubs eating gluten and kissing you? Drinking beer? He needs to brush his teeth if he does.
It is NOT ok for your bowels to be "dumping" (pun intended) all at once. That indicates there is an ongoing problem, likely regular cross contamination- just not enough to make you violently ill.
Now, for your other question. When you get glutened, a few things help. Gluten relief enzymes can ease the pain a bit, but I have found a couple of tsp of Braggs apple cider vinegar in a glass of water to work better and faster. It stops the pain almost instantly. Tastes bad, but relief is not picky.
Hot soaks in epsom salts also help.
Lots and lots of water to help flush it out.
Now...are you casein free as well? Casein is a big offender for a lot of celiacs, and removing it from your diet may help your bowel issues as well. You are on the right path, but don't be willing to accept what is happening to you. Celiac disease does NOT mean living in the bathroom!
Thank you for all your advice Mitzi, but I think I was misleading about my once a month problem and I totally blame my current "gluten brain" that I'm suffering from at this time. It's not my bowels "dumping", it's my uterus. I'm actually one of those that have constipation instead of diarrea, though I do get that too from time to time. I saw that vinegar trick on the forums yesterday and tried it. I definitely helped the nausea, but the gluten induced cramping is still there.
I saw my GI dr and he still believes that it's not celiac, explained that prednisone was more for the extreme cases that are on a similar level as cancer and that my symptoms, including my history with lactose intolerance and anemia, are non-specific. But he did give me a script for the cramping, so we'll see if that works.
The severe menstruation is probably a hormone imbalance which I had my suspicions about that anyway because I've also developed lots of facial hair. I'm going to see my gyn soon too.
The bottom line really is that I may just have to make my entire house gluten free. The longest I been able to go without an accidental glutening is about 5 months and I've always been able to tell how I've come across it, except for the last two times. I have my own cooking utensils, pots, pans, etc, but the rest of my family eat whatever they want. It'll take a lot of sacrific on my husband's part, because he hates getting rid of anything "useful" just to buy new ones. He also has a difficult time understanding that the plain cure for my problem is to stay away from gluten. Period. He believes that there has to be some kind of drug treatment for any ailment, which is what led us to the predisone inquiry. But after the last month and a half of my symptoms, I think he may be ready "cleanse" the house of all gluten.