Is it really that bad? Because if it is it will naturally cause some problems and then it's really about medical support. But if you mean that your hand isn't t

Is it really that bad? Because if it is it will naturally cause some problems and then it's really about medical support. But if you mean that your hand isn't that steady then it's not a problem at all, because it doesn't have to be and with a lot of practice (just like trying to draw straight line, triangle, circle, etc. again and again thousands times) it will improve anyway. So, well, not to discourage you from medical help if you actually need some, but you shouldn't wait for getting better to start. Just find some tutorial (as I said already, I don't recommend Edwards, better start with Dodson or Loomis or anything else somewhat serious) and do something. Even if you'll be disturbed by your illness your practice lets you sublime anyway, which is good by itself. As it's been said: nothing's impossible for a willing mind.