Good luck. That injury took my months to heal properly. I remember not being able to use a towel to dry off because it was so sore. I've had it in both arms.

Could be nerve damage or pinch over and muscle damage if you legitimately cannot flex or move it. Is there any burning or tingling sensations around the area? Can you engage it in any way while bearing weight?

I had something similar after an elbow injury. You can go and get Electromyography (EMG) where they insert small needle like probe electrodes into the suspected areas of musculature and nerve groups and see how electrical pulses get responded too. You can literally see what is firing and they can manually do it.

I had a pinched nerve in elbow that made it where to bottom of arm and wrist couldn’t engage. I couldn’t pull with my wrist twisting. Think like motorcycle throttle movement- I couldn’t engage any power into that.

Had to have a small minimally invasive surgery and it fixed instantly in terms of feeling. Over 6 months became 100% again.

CIALIS to keep it hard :-)

Do you feel the pain closer to the joint? I had really bad pain similar to that when I benched. I was trying to hold the bar with my fingers When I deadlifted. When I started using chalk and alternating grip. The pain in that area stopped like 2 week later.

Bpc helped

I had similar injury to same area. Nothing notable happened for it to be injured. Just one arm day I started to feel a strain almost like a tear. It was tolerable at first, then within a few weeks I couldn't train arms it was so bad. I went months with out training biceps with little to no healing. Then jumped on bpc157 for 8 weeks and it healed.