Fentanyl and itching skin

I have been on fentanyl for about 3 years because i have a lot of spinal problems and have had 3 surgeries and this is the most horrible drug I have ever taken or could imagine. It has been a nightmare. I have lost down to 93 lbs. I have agitation, cannot sleep am awake about every 2 hours and have very vivid dreams, memory problems,flu like symptoms, trouble breathing seems hard to get a good breath and lots of wheezing, bad depression, moody, agitated, sad, itching,skin rashes, feeling of just not being there, racing thoughts, burning skin, feel like I am going crazy, get very sick if I get too hot or exercise very much. The doctor said I finally had his attention and started slowly weaning me off of them