I don't know how else to describe it...but my left arm feels weird, differnet form my right and not "normal". I was struggling with my son last Thurs (he is 6 and is disabled) my arm felt fine on Friday but on Sat it started to feel weak and tingly- its really hard to describe the exact feeling but I feel like ive lost strength in it.

A few yrs back I had a similar problem with this arm and I convinced myself I had MS - had strength tests at Drs and was told everything ws fine and eventually it went but this feels similar.

I am so scared - do you think its just where ive strained or pulled a muscle in my arm? The muscle at the back of my upper arm is aching but the weakness is in the whole arm

Thanks