I think mouthmeetsoap made a point. A bit harsh about it imo, but a point nonetheless. Urca, you do post fairly often about this or that trial or tribulation going on in your life. Not a damn thing wrong with that imo, that's what a forum like this is for, along with anything else someone wants to talk about.
However, my real point is that, if there are that many issues in your life that you are dealing with, or if it doesn't take much to make you worry about stuff, then right at the top of my list of possible causes for ills like your hands is stress. I just get the feeling you have a lot of it, and it can do weird stuff.
I can, and do, put up with a lot of crap in my life. I have only come to realize in the past couple years how it has affected my health. I know, because a big stressor was removed last year and several issues went away.