I can definitely relate with you about this drug, my symptoms were different from yours, I started with 5 mg. for GAD/PTSD., I was already taking Ativan 0.5 mg. and Amytriptyline 10 mg., I felt the effects of the Mirtazapine on the first dose, I felt edgy, restless with tension, I had a ferocious appetite which was the only good thing about this medication. I read stories from people that loved this drug, they said sleep came easy with great dreams, I was barely able to sleep and when I did it was so frightening what I came up with, it was like a creepy movie with lots of violence, I couldn’t get hold of the prescribing doctor and the help just wasn’t right so I began to wean off it, I wasn’t on it for long so withdrawal was tolerated but still exercised caution, strangely it remained with me for a while longer, threw off my sleep for a while. It’s pretty much the same thing with most medications and it doesn’t always matter how others felt because it’s different for everyone, to date I haven’t heard anything worrying about this drug, it just wasn’t for me.