Ive been on 10mg amitriptyline once a night for about 5 months for ibs symptoms while ive been on this medication ive found myself feeling very low very tired and started getting anxiety and panic attacks from bowhere which id never ever experienced before and I heard and read online that amitriptyline can cause this. So I had my last ami 4 days ago and I already feel better within myself and have my first panic free day without needing a propranolol tablet for the first time in absolutely ages . Has anyone else had experience with this? Tia :)