I woke up at around 3:30 AM (central time), and I can't fall asleep again. I just keep thinking about all my mistakes and other things I could have done in the situations. Then I start shaking. I can't stop it, either. When a really bad one hits, I kind of loose control of my body, grab my head, and blurt out a random word or sentence like "STOP IT", "NO", or "I HATE YOU". Sometimes even a swear word. I can't control it. I hate it. Everything I do to try and stop it (like listening to calming music or hugging my cat) makes it worse. I can't call my friend and talk to him like I normally do in these situations because it's 4:30 AM.

Is this an Autistic thing? Or am I just loosing my mind? What should I do?