6 months surprises me for gout to develop… always thought that one took more time to present (but I’m not even close to qualified to make that call).
I will say that bloodwork will help determine gout… uric acid in the blood would he elevated (I believe), which can also be indicative of other issues / organ function. Gout can be triggered by chronic under-hydration, over or incorrect supplementation, among other things. It is painful, may shows swelling and inflammation around joints, similar to what you might see on someone with RA on their hands. Can go hand in hand with kidney issues, all of which bloodwork can help determine. I had a chameleon with suspected gout and it required special accommodations to assist with mobility, TLC, and special attention to hydration. That chameleon had special needs when it came to me (as an adult), so its unclear what the underlying cause may have been, but bloodwork did show mildly elevated uric acid.