I am feeling the exact same way. My mirena was removed about a two and a half weeks ago. When the anxiety comes on now, it subsides in a few minutes and I don't feel like I am going to climb out of my scull. I hated feeling that way. I felt like I was going absolutely mad. Every day I feel a little bit more sane and can cope better with stress. I am also starting to sleep better at night, however, I am still exhausted a lot of the time. Most likely my body trying to balance out after being so out of whack for 3 + years. I had my period about two days after removal and it was light and red at first then turned muddy for a few days after that. Gross!! Anyway, it lasted about 7 days that way, and cleared up. I am curious to see what the next month has in store for me. I think my uterus must have been ridding itself of old tissue and blood since it had not sluffed off for 3 years.

Anyway, I am so glad I had my mirena removed, and I try to pass on the new about it's side effects as much as possible.