I'm new to the forum and just wanted to seek some advice. I went to see my doc a little over a week ago (March 19). At the time of my visit I mentioned to him that I had a "knot" in my back inside my left shoulder blade. It seemed muscular to me. He pressed on it very hard several times and popped it under his thumb. It hurt at the time but didn't last so I didn't think much of it. That evening at the gym I was trying to do a military press using a cable machine, and I noticed the weight seemed much heavier on the left side. I thought something was wrong with the machine so I moved to another only to realize I was doing most of the lifting with my right arm. The next morning I had trouble doing a push up. I couldn't follow through with my left arm. Also had a twitching sensation along the inside of my tricep and along the deltoid on the left side.
I decided to wait a couple of days to see if it got any better, and it did not. I called him and saw him again on Friday. He told me that it was not anything he did, but he suspected a pinched nerve in my neck and prescribed a steroid (Prednisone) to relive inflamation. He said if that didn't work I would need to go for a MRI and possible steroid injections. It did not get any better and now I have an appointment for an MRI on Thursday.
My question is should I follow through with this MRI (very expensive)? Several people have told me it seems my doc is jumping the gun. Should I give it a little more time? I have not had any pain until this morning. I have a pain in my left arm from my shoulder down to my elbow along the tricep.