I have medial epicondylar release & ulnar nerve decompression on5/9/14. i still have swelling and sharp pains numb elbow. is that normal?

Yes: That is a very tender area of the body and those particular procedures can cause lingering pain. It will improve but be sure to tell your surgeon and ask for a pain consult to find out your options.

Cubital tunnel: Yes. Sometimes the pain and swelling can take months to heal. Try using an elbow guard, anti-inflammatory medications, and ice at night. Your surgeon may recommend occupational therapy to speed recovery too.

Not normal: After almost 3 month since your surgery, I would expect you to be better unless you had significant nerve damage before surgery. I would recommend you get back into your surgeon and possibly your neurologist and have it evaluated.