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i did arms yesterday, pretty intense workout. later that night, my left bicep started to involuntary spasm (like it had a heartbeat or something). prolly 10-15 seconds between spasms, went to sleep with it still doing it. this morning, no spasms, but this afternoon, its started to happen again. the intervals between spasms is a lil longer tho. is this something i need to be worried about or will it just go away?
