Review about Amitriptyline

I had a complete nervous breakdown 2 1/2 years ago, a year after that I was diagnosed with ADHD and then after a year of total exhaustion, inexplicable pain in my chest muscles, neck muscles, back, occasionally short of breath and anxious. Started hyperventilating and ended up on speed. Physically, my muscles were extremely tense so I was prescribed redomex. It took a good month for the pain to improve, but a few months later, I noticed considerable weight gain, approximately 9 kg, I find it difficult because the few times that I've tried to reduced to 10 mg the pain has come back, so I'm still taking it and trying to lose weight with diet and exercise. Good news is that the 9 kg hasn't increased.