Comedown - Is anxiety during/after comedown normal?

[yblok]

My monkey has this to share with you all:

"I fried for the first time the other night, I've dropped acid a couple times before, but both times I got mild effects similar to MDMA that only lasted 10-15 minutes. Anyhow, I dropped 2 tabs around sundown and had a decent trip that lasted most of the night, but around noon of the next day I tried to sleep and I couldn't. I was tired, but I had this feeling of anxiety that wouldn't go away. It was strange, I've never really felt anxiety before (now I know why my friend takes so much klonopin). It lasted the rest of the day until I finally got to sleep around 9 (it took a lot of food and a cup of chamomille tea). I just wanted to know if this is normal for experienced trippers, or if it was just a one time thing. Cause if it persists I won't be tripping any longer. I'm hoping it's not normal cause I love this stuff."