I have been playing for about 6 months but just recently really got into it. I can play the beginner songs no problem without pain, but I got a book recommend on these forums called Bass Fitness, and when I try the excercises in there my fingering hand starts burning really bad on the side of my hand below my pinky and in the ball of my hand right below my thumb. I tried playing as soft as I can but it still burns. Is this something that just happens with new players and is the muscle burning from being used in a whole new way or am I setting my self up for some serious hand injury down the road? I really want to start practicing a couple hours a day but right now just getting through 30 min is a test of pain tolerance. Any help is MUCH appreciated! I also just want to shout out how happy I am to learn the bass instead of going the all too common route or learning gutiar.