I'm hoping someone has been in a similar position or can offer help. I started mirtazapine at 30mg seven weeks ago for severe anxiety ( racing thoughts, unable to sleep, overthinking, low mood etc) and after a couple of weeks it really seemed to be helping and I started to feel like my old self again. However, as soon as I hit week 7, ALL of the symptoms are back again, along with heart palpitations and on the edge of a panic attack, sleeps gone to pot. For the first few days I've tried my best to muddle along but after an entire week of this I'm worried this isn't going to work. I can't tolerate ssri ( sertraline sent me highly agitated and a hundred times worse). Has anyone had this happen to them and did it get better?