I had that happen to me a few months ago. It hung on for over a month then just disappeared. I occasionally still get the numbness and tingling feeling on my right side but it doesn’t last as long. I was told it’s from Psoriatic Arthritis that I have. My doctor said he could send me for some tests, nerve conduction, if I wanted to but he felt it wasn’t necessary. I bought a shoulder brace from Amazon. It’s for rotator cuff injuries. It really helped me with the shoulder discomfort. When I feel the issues coming back I put on the brace & they go away fairly soon.

I did in 2020. It started with minor pain, tingling, & numbness at the shoulder, wrist and funny bone, the elbow. I had ex-rays at all areas on both of my arms. It turns out I had bone spurs at the wrists and tennis elbow. It kept getting worse and I lost my full range of motion in my arms. If I leaned on my elbows for any length of time my whole arm would go numb, fall asleep. I thought for sure I needed surgery. My doctor ordered physical therapy for me. Two times a week I did various exercises, stretching out the range, gaining strength in my arms, and releasing the tension. After 3-4 months I was almost back to my normal self. I could not believe it, and no surgery needed.

I have had numbness in my fingers also. I couldn’t determine how or why is comes and goes.

I also have numbness in my right arm, right leg. I had a nerve conduction test done a few years ago on my right hand and the nerves were apparently fine. I've also had tendonitis and carpal tunnel swelling in that hand. The doctor told me I probably just have a nerve being pinched when I'm in certain positions. My arm would always go to sleep when I'd sleep on my stomach and stretch my arm over my head. Extreme elbow or shoulder bend no doubt. I'm hoping my shoulder surgery will help because the doctor said as well as repairing my torn rotator cuff and torn bicep muscle he will remove as much of the arthritis as he can arthroscopically. The Ulnar nerve is the one that causes issues for me and it could possibly be pinched by bone spurs in my shoulder. Could also be caused by arthritic cervical vertebrae.

Yes happened to me all the time it was caused from the inflammation. Rheumatoid and PSA can mimic carpal tunnel because of inflammation. Also my BIL was having issues with his arm/ shoulder said some days he felt like he couldn't use it after months of getting the run around a Dr finally realized it was something different got and MRI of his brain and it was a tumor that was causing his issues. Not telling you to scare you but want you to be aware.