Did you see a doctor?
I had similar symptoms for years and finally when i saw a doctor they told me it was crohns disease. I also had a lot of pain specific to the lower right side of my back which I guess was do from inflammation. My abdominal pain is now pretty much gone but I still have this isolated pain. Therefore I do some stretches that I found on this website,
lower right back pain. This has helped a lot! Hope you are all better!