My leg joints frequently inflame, one at a time but each has done it already. First, how to find out if it's gout or rheumatic arthritis, or possibly something else? Then, depending on this, what can I do to prevent the inflammations?

I live now in a developing country in a small town. When I'm having this issue I can't travel to see a specialist and when I'm not, I think there's nothing to diagnose.

Thank you very much.