Is this normal?

[Life Sucks]

Whenever I have been playing my guitar for a while, my forearm gets tired and starts to hurt a little bit. I do lots of very fast palm muted picking, but still, does this mean that my technique is incorrect in some way?

 

[Life Sucks]

Well, I pick from my wrist. But my forearm stays tight because somehow it feels like i am controlling my hand better than. The forearm isn't moving, though.

 

[Life Sucks]

I am relaxed while playing. My forearm does not move, but I need to grip my pick tight when doing the fast plam muted picking, so it is tense. Maybe I don't need to grab the pick quite as hard.

 

[Feicht]

you're probably squeezing something too hard, the pick, your muscles, something... and not realizing it. i used to do this too. just try to be as relaxed as possible while playing

 

[Loner]

Try to relax, your arm will strengthen over time.