Yes, in my opinion the symptoms you are having are caused by the recent work you have been doing using your arms. You have overdone it! The same thing happened to me when I was pruning some trees with a heavy pruning tool. I did this for three days, and that's when my arm started aching with a pins and needles feeling. You need to rest your arms and give the over-used muscles time to heal. The pins and needles sensation is caused by the nerves protecting the muscles (I think).
At any rate it is not permanent. Good luck.