Doesn't sound like going crazy to me. Sounds like your anxiety has picked back up. If what you were going thru was a part of going crazy you would find all sorts of info about it on the internet. It's "just" intrusive thoughts. I put just in quotes because I know it is quite disturbing, but you indicated that you have dealt with them before. Wouldn't hurt to find a therapist. Also, you might want to check with your doctor. Hormones can cause anxiety symptoms to flare up along with other things.