I’ve been on Fluoxetine 20mg for depression for 4 months

Patient: I’ve been on Fluoxetine 20mg for depression for 4 months and recently I got put on Amitriptyline 25mg for migraines but they used to be antidepressants, I had a very bad reaction so I’ve changed to Nortriptyline which also used to be an antidepressant. I have to start at 10mg and work my way up to 30mg in a month so over all I’ll be on 50mg for depression/migraine basically. I’m scared to have a bad reaction again because I know Nortriptyline has really bad side affects. I’m 5″4 and 6 stone so I think 50mg is too much and will mong me out. Can someone help please?

Doctor: