I had my first Mirena five years ago. I loved that I had no peri...

I had my first Mirena five years ago. I loved that I had no periods... it was wonderful! I just had my second one placed two weeks ago and I have been getting flushed, have panic attacks, and a weird "shock-like" feeling in my vagina. The panic attacks are driving me crazy and I wasn't sure if it could be related. After reading several postings, I realize it could very well be the Mirena. But why don't I remember this with the first one? I did get the "shock-like" sensation before.