anxiety
"During a really worrying period with one of my children I found I couldn't sleep and would lie awake with pounding heart and shaking.  This meant I found terrible during the day and it just got worse and worse. I eventually was referred to a Psychiatrist who prescribed Mirtazapine 15mg.  Well the first night I slept all night!  I was very groggy in the morning.  Gradually the grogginess lessened.  I found that because I was getting a good nights restful sleep I started to improve.  It really was like a miracle for me.  I have been on it now for about 18 months, the family crisis is over and I want to get off now if I can. so I have started taking just 7.5mg will see how I go with that for a while then hopefully stop altogether."