I'm 17 and I've only been playing bass for a little over 3 years. About 2 or 3 months ago at a gig I experience very sudden shooting pains in my right wrist and the pain has been back and forth ever since.. I have stiffness in both my wrists and I get numbness and very uncomfortable muscle spasms in my forearms. I'm not sure if i have tendinitis because I don't visit the doctor. But the pains persist even when i take a break from playing for a few days. Its now at the point where its hard to use my hands and i play alot. During the time when I first felt the pain I just got used to playing a 5 hour gig i had and i was playing 8 hour days almost every weekend. So now i play about 4 hours a day and i can only go about 2 songs before pain sets in and now i have issues with both my arms, my back and my neck... I can't afford to stop playing for long periods of time.. What should I do experienced bass players?!?!?!