the muscles starts streching every moment you sit down
The scientific name for your upper arm is the Humerus
to up and down to left and right
Go see a doctor ASAP.
To be sure if you have pinched a nerve in your left upper arm please consult a physician.
Your arm aches because you might have been sleeping on one arm and putting to much pressure on it. Later, it might feel numb, or might ache. Also, it can happen to both of your arms.
Shia Labeouf has a paw print tattoo on his upper left arm.
Upper left arm. This puts it as close to your heart as possible.
Roy Keane has a cross on the upper part of his left arm (Upper arm outside of his bicep)
neck and left arm aches related to angina ,
Tuberculosis
a heart with wings
Yes he does. it is on the back of his left upper arm.