HELP!!!! Ok heres my story- I herniated a disc in my back abou...

HELP!!!! Ok heres my story- I herniated a disc in my back about 4 years ago. I had a microdicectomy at the time and took prednisone starting at 40mg and weening off for a 14 day cycle. i had NO problems. 4 months ago i reherniated the disc. after 2 cycles of 14 days each on prednisone and 2 epideral injections in my spine it DID NOT work. i then started vicodin. i upgraded to percocet about 2 months in. i had the surgery again and after the surgery...yup another 14 day cycle of prednisone. i am off the percocet now ( i was on about 40mg per day for 14 days) and just finished the prednisone 4 days ago. this is what I am feeling: restless crawling out of my skin sweating just stopped yesterday heart pounding cant sleep Do you think this is from coming of the prednisone????? If it is how long does this usually last??