A few months ago I had a stress-induced muscle spasm in my left shoulder after some heart palpitations (way overboard on the anxiety that day).
I went to the doc and she suggested massaging it and using store-bought cremes like Ben-Gay, which only worked for maybe an hour.
It gradually loosened up over a few weeks. But in the meantime, the tensed muscles were pressing on some nerves and the tips of two fingers were a little numb, the same fingers have joint pain, and my elbow has joint pain, along with reduced strength in that arm.
And, whenever I get anxious, the muscle cramp feeling comes creeping back in.
Not a lot of fun, and it seems like it may be a permanent recurrence

.
You'd think there'd be a better way to treat this. Y'know, besides the doc telling you to 'relax' more.