he informed me that a lot of problems come from repetitive motions....suggesting that my right arm pain could potentially be from the strumming....which would not be good because i dont intend on stopping ....
but maybe your positioning and the way you are sitting...maybe the way your arm is angled can be adjusted...or at least checked out
numbness isnt a good thing......can be nothing...or can be something
dont let it go too long without looking into it
just my opinion
be well