I need a Genious

I need an expert !
For quite some time I have had stomach pain.  Some points to where it was unbearable. The pain is in my lower stomach I would say.

It was so bad at one point I had to go to the ER.  They ran all the blood tests (CBC my guess).  Alt/Ast and kidney function were all fine. Nothing was out of the ordinary.

The pain subsided a little bit and my primary care said it could of been some ulcers.  I took it upon myself to take prilosec.  It worked! I felt so much better..then it came back.  I cant shake the pain. It wont go away.

I went to a gastro doctor who then felt necessary to run further testing. I had my stool analyzed for parasites and w.e else.  I had the X-ray done.  I also at the same time drank the barium and stood in a machine that took consectutive pictures.  All this came up fine! Nothing wrong?
After this I had a colonoscopy!  The results came up fine, nothing wrong?
The last option was to eat the mini camera..I didnt get that far.
I just kept taking prilosec and it seemed to minimize the pain.

Heres where I think I can limit it down.
I am lactose intolerant ( I have been since I was a lil kid )( I dont believe this is part of the issue )
I stay away from dairy for the most part but now most foods will irritate me regardless, unless im constantly taking Prilosec.
I go to the gym regularly and take protein.  I notice this upsets me the most.  I take my lactaid pill with it but doesnt do anything.  It forces me to the bathroom, turning everything into diarrhea.  It burns so im def releasing acidic liquid.  This is where I think the extra acid starts to produce therefore making me take Prilosec to feel better!!!!
HOWEVER - I have taken oral/inj anabolics. I bought oral anabolics prohormones from stores..( I kno stupid, VERY toxic!)
FYI, this issue with taking protein never was a problem to my stomach before using anabolics.

This could be a issue due to increasing my protein synthesis or the toxicity ruining my digestive enzymes????
Is it possible that I no longer have the digestive enzymes to break certain foods down??
Im lost and could really use some help to relieve me of my pain!

[Caryopteris]

Celiac disease, a reaction to gluten, is becoming more and more common.  It now affects 1 in 130 people!  Please get tested for gluten allergy.  They should do about 3 blood tests.  Even if you had upper endoscopy and they didn't see damage, you could still have it and it hasn't shown evidence of damage yet.  If this is it and you go on a gluten-free diet, you will start feeling better soon.  I had a friend whose only symptom was terrible heartburn.  She had advanced Celiac disease.  She was anemic and low in vitamin D and other vitamins and minerals.  I think it took 3 months for her to get relief, but she did stop having heartburn.  Every time she tries to eat gluten, the heartburn comes right back.  And yes, having Celiac disease affects nutrition and you need enzymes sometimes, I think.  

[ktolver]

Get checked for h-pylori you could have gotten contaminated by food or water. I felt the same a one time and thats what it was after test after test. It will get better but go see stomach doctor