Weird new vein bulging at end of arm workout

I noticed a new vein in my forearm towards the end of my workout. Instead of long vein like my other ones, this ones is more of a bump, like a mosquito bite. I can only see it now when I’m flexing hard, I cannot see or feel it when I’m not flexing.

Does this seem normal?

submitted by /u/Savage4Cabbage
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* This article was originally published here