My arm has been having severe aches and pain the past 4 hours and I did not hurt it at work in anyway. To me it’s a 6 out of 10 and it hurts really bad to move it. The pain starts at the top of my arm, then travels down my arm. I tired a cold pack, it helped, but the pain is back. It hurts to carry things with that hand. It feels like muscle soreness. My arm is red cause of it, or that may be from the cold pack.