Left arm is supper weak Need HELP
HI, I’m Brian and I slept with my head outside the bed so it was like hanging and since then I’ve had neck pain when I stretch it. Not also that but I realized that my left arm is supper weak. I’m having trouble curling 10 LBS when my right arm can curl 30 LBS 10+ times. I can’t even lift 3 LBS when my arm is extended. I noticed this when I went to the gym and tried to work on shoulders and my left arm couldn’t lift zip.