Hang in there!
I will try and make this short.
3-4 years ago I was in constant pain, the MD's had no clue. I got to the point that all I could eat was a rice protein shake and barely that. I had to drink little bits every hour. I couldn't sleep for more than 4 hours. I constantly felt like I was going to faint, if I stood up, everything would go black.
I prayed and prayed and discovered that I couldn't tolerate gluten. It took about 2 weeks but the pain stopped. The rapid weight-loss evened off. But my guts were so damaged that all I could eat was chicken thighs, cooked squash, cooked onions, and ghee. I ate this for 8 months, no kidding. I found a classical homeopath and within 3 months was eating everything but gluten and eggs. I am still working on a complete cure but I am now better than I have ever been in my life.

Some things I did:
Drink water, lots of it. Though when I was really ill it made my stomach cramp, I learned 3 years later that this happens when you are chronically dehydrated, and to drink more.

Parasite cleanse and bowel cleanse, I was chronically constipated for, well as long as I can remember. I thought it was normal.

Liver cleanse. That took alot of faith to do. 4 years before I did it, and it was so worth it.

I have always had severe hypoglycemia, always carried food with me, and would panic if I ran out. What helped a lot with that was eating more protein rich foods and good fats (Makers Diet and Nourishing Traditions are two great books that I follow) I can fast now with no problems. I think the parasite cleanse would help with that too.

My biggest regret is not jumping in sooner and doing it. Also, don't think just one cleanse will do it, I have done several cleanses and many different types, all pealed a little layer of illness off. I plan on doing this P&B cleanse for 3 months, taking a break and doing it again. Same with the parasite cleanse, I passed hundreds of them and am doing it again.

I wish to encourage you, there is help out there and there is an answer. Keep fighting!
Newbe