Had cubical tunnel decompression, guyons canal release, and carpal tunnel release. i developed nerve pain post-surgery, in my elbow, forearm, back of arm, and numbness, tingling and now finger contractions. do i have a nerve injury or is this normal?

I can't consider this normal or a satisfactory result. If you're not getting satisfactory care or advice from your surgeon, I recommend consulting a hand surgeon at a department of hand surgery at a university hospital near you.

Would not say any of this is normal or the usual outcome. Definitely get a second opinion. An EMG study will reveal location and severity of your problems