I Had Knee Replacement 3 Months Ago. Went Cold Turkey

I had knee replacement 3 months ago. Went cold turkey off norco about 3 weeks ago. Can't sleep, have restless legs, nauseated and diarrhea. Also extremely fatigued and weak. I've been taking sleepy time celestial seasonings before bed and 2 Tylenol pm. Blood pressure is about 120/59. My doc ordered out clonidine for 10 days for lets and this past week ordered. Me an antidepressant 1/2 tablet at bedtime as needed to help me sleep. Haven't taken it because I don't want to use antidepressants