“Overdose 3x nortriptyline tramadol mix?”

I had an injury with my knee and back from work. After a year of operations cortisone treatments 4x and epidural as the pain wouldn't subside my work doctor started prescribing nortriptyline to take me off 6x tramadol I was taking a day. After deciding I had chronic pain he upped the nortriptyline to 200mg plus I was allowed 2 tramadol to assist with pain, ended up with 3 x overdose toxicity with a range of symptoms, stutter wrong words forgetfulness, fatigue, bad tingling, and painful arms, hands, feet, legs. I was not sleeping could only shuffle my feet but with the assistance of crutches can walk further as 5 months have passed. As my blood level has since gone back to normal after 2 months my symptoms are still the same I still stutter and forget words when really tired get a spasm in my hands they cramp when really tired and have daily hands and feet constantly tingling and painful and the flesh between toes fingers soles of feet. I saw a video relating to mitochondria and wondered with the high toxicity levels would have killed off some of the mitochondria cells. I am constantly fatigued and exhausted hopefully you are able to help.