Not being able to sleep after surgery

I recently had a left hernia surgery on one day and the following had UPPP surgery. The surgeries went well however I am having problems sleeping. The doctor has prescribed ambien 5 mg which works well for about 4 hrs. Then I am up an pacing worrying about not gettting enough sleep.  From the UPPP surgery I feel as though at times my throat is swelling and I begin to panic. I also experiencing severe  cramps in my calfs as I lay trying to fall asleep. Tomorrow will be 3 weeks from the first surgery. I would have thought I would have been back to normal but feel I am going down hill. Do you have any suggestions?

[beachtowel]

Welcome are you a par golfer???

I had left Inguinal hernia surgery two yrs ago with the mesh.
I had no problems, had a lot of pain meds. I slept like a baby.
Many times a swollen throat or tounge is an alergy (allergy) reaction to something...