I have been on amitriptiline for 7 years and half wean down and off for 18 days, yesterday I got a bad anxiety/panic attack because I took some psudephedrine bad mistake, it flipped me out so I went back on 10mg last night to sleep. Today I flipped out and again and took 10 mg. I hoping after I stop flipping out that I could take 5mg of amitriptiline for sleep without gaining the weight. I went through allot for 18 days, flu symtoms tightness in my head and ears from the withdrawls. Doc said I could quit off of 25 mg. Not a good idea.