Just to try and add a little lightheartedness to what is a serious subject, there are plenty of rumouratologists on this site. Tend to pop up in abundance around the transfer windows!!!!
Think others are right in that you shouldn't be thinking of suing and compensation at this time. Instead of googling for lawyers, google the illness. Success rates for it appear to be very high so focus on that. Learn as much as you can about your illness and the various treatments so you can...