Originally posted by Balonger93
^Title
I know this sounds stupid, but after I grind for 3-4 hours my index finger actually hurts from clicking. Using my middle finger works, but is fairly annoying. A few years ago, I was playing FPS games for whole nights and I had no problems, now I have trouble clicking around playing poker 
Any suggestion? ♦ I still have my trusty gamer mouse around.
There are a lot of things you can do to minimize this.
♦ frequent breaks to stretch your hand/arm and wiggle your fingers. Change position of your mouse from its normal position to another one for a few minutes every so often.
♦ make sure that when using the mouse your forearm forms a straight line with the back of your hand -- your wrist is not bent either up or down, in other words.
others have offered good suggestions too.
Best of luck,
--VS