I’m having tingling in my left arm. It is of two types
down the short biceps
around the anterior deltoid and out the tip of my thumb.
Did I tweak a nerve or a muscle? This has been happening for a few days. Possible causes are a return to swimming after a break of several months (never had this before, as I recall) or perhaps the fact that I just increase my poundages on my 1-arm overhead lifts by 5% (to 65 lbs., laid off of those for a long time in favor of handstand pushups and now want to work my unilateral poundages back up to something respectable).
Any thoughts/observations are appreciated.