Hello. My first post here. I am going through a very similar experience as described by @radar614 and @jenniferhunter above. About 4 weeks ago I woke up feeling the same tingling in my left pinky and ring finger and numbness in that part of the palm. This slowly progressed to coldness in those fingers and significant pain/tightness in the ‘pinky side’ of my forearm and some general pain (not as severe) in my elbow. This all occurred after two events that I thought may have caused it. One was an incident with a battery-powered hand drill where I was drilling through some thick plate steel (should not have been using a hand drill for this) and the drill bit got caught and torqued my left arm quite severely. I was pretty certain that as soon as it happened that I broke my wrist. This happened on April 4, but everything seemed ok, until a day or two later, when I first noticed the tingling in my fingers. The other event around the same time was I was holding the halter on a horse getting ready to give her medicine and she snapped her neck back, pulling my left arm with her. As the symptoms/pain got worse, I went to see the orthopedist (Apr 29) who had just rebuilt my wife’s rotator cuff back in March. He also cleaned out bone spurs in my left shoulder a couple years back. He x-rayed the elbow and saw no broken bones. He also pressed his fingers in to all the joints to see if there were any detached tendons. He basically said I had some soft tissue sprains in my wrist/forearm, gave me a wrist brace and an Rx for Celebrex, and said I’d be fine in a couple of weeks. Since then, I have been experiencing very significant pain in my left shoulder blade. So bad, that I am unable to drive or even sit upright. The driving position definitely seems like it aggravated it the most. Neither the Celebrex or NSAIDs seem to kill the pain. While I always feel it, it is definitely worse at the end of the day, except for my forearm. I am unable to grip a razor and shave my face in the morning due to the tightness I feel on my forearm/elbow. But if I do this in the shower at night, I have no issue. After reading what @jenniferhunter wrote about the fascia, I am wondering if my forearm is less affected later in the day because I have been using it all day (we have a horse farm and there is a lot of physical labor) and that loosens it up.

Despite the severe pain (mostly in my shoulder blade), I have not really lost any strength or range of motion. Though I do notice a lot of crunching in my shoulder blade when I raise my arm over my head. I do that because it helps to alleviate the shoulder blade pain. I was going to call the Ortho today (May 4) to let them know that I am worse than I was a week ago, and am wondering if I should ask him about the TOS. I’m not sure he will know that. He was somewhat dismissive of the tingling/numbness in my fingers because I still had all the strength in them.

Apologies for the super long post, but this is the first place I’ve seen where folks have experienced the same thing as me. I do believe mine is due to the acute injury based on the timing. I also pulled muscles in my triceps, serratus, and pectoral muscles from the drill incident, but that pain has gone down pretty significantly.