Oh yeah, arm & hand pain was normal for me when I 1st began...I'm thinking it's from using muscles in ways that we didn't normally do

. It still happens from time to time, it's VERY IMPORTANT to take breaks when knitting so this doesn't happen...just like Mer said...don't injure yourself! Knit for a while & stop and I'm sure u will build up tolerance, like with any muscle...we happen to have strong knitting muscles around here, I guess...LOL! I do bc I knit ALL THE TIME
