I hope you find relief from your cramping issue.
As for my signature line, I have psoriasis, PsA and hypogonadism. PsA is shorthand for psoriatic arthritis. Its classic symptom is the sausage toe, but for me it's also in the knees, 1 hip, spine, and 3 fingers. Having failed Methotrexate, quinines, and azathioprine, I've just started Humira a month ago. I take one shot every two weeks. I haven't noticed any benefit yet, but I'm very hopeful.
Hypogonadism is low testosterone. Perhaps 1/3 of men with autoimmune diseases like RA have it. The main symptoms for me were weight loss, poor erections, and diminished sexual desire. I use a topical testosterone gel called Androgel and it works great.
I don't use any supplements, but I try to eat lots of fruits and vegetables, and some cold water fish. I still love meat, but I try to stay at around 100 g per day of it. And I swim a lot. Lately I've been doing 'deep water aquafit' because I get bored just swimming back and forth.