Eeeeek! 
I started with issues like that and ended up retired from driving by the age of 34. I would like to think I am a rare case though so please don’t panic. 
It turned out that I have a rare form of arthritis along with other autoimmune problems. I am now on a life long drug regime that include anti organ rejection drugs plus medication for malaria, which serve the purpose of suppressing my immune system.
I am well now but it has changed my life considerably. I am presuming that your problems are a repetitive strain injury type issue because that is a much more cheerful outcome and if that is the case then IMHO it is worth asking your GP to refer you for physio therapy, I was very sceptical but it really helps.
Good luck and please let us know how you get on. 