Carpal tunnel and tennis elbow surgery

Hi, I had carpal tunnel and tennis elbow surgery done on my left arm 3 weeks ago. 13 days after the surgery my index finger was very cold, swollen and stiff and I had no feeling on that finger, part of the middle, inner part on my thumb and part of my palm. I'm in constant pain (squeezing, pricking, pinching, stabbing, burning sensation). I haven't had therapy yet so my fingers, hand n elbow are getting stiff (atrophy is setting in), I do the best I can by moving, stretching and ROM but it hurts so much. (My therapy appt is this Wednesday). I've gone to the ER and was released, I was told they couldn't do anything for me and that I had to see my surgeon which I did and all he says is that I still have a lot of swelling. All they give me is meds, I was given pain killers, anti-inflammatory, steroids, and Lyrica. I'm worried and concerned that I might have nerve damaged. Can someone please help and tell me if this is normal or not.

Thanks

Brenda