Am I a freak? Is this just me being a ridiculous person?
If you are a freak and a ridiculous person, then so am I. Now what? Oh, and it sounds like you're judging both this change in your panic situation and your reaction to the situation. I do that to. Welcome to the club.

I have no idea how to control these feelings, and I feel like I'm going to explode!
I can relate. My panic and even worse my sense that I must do something about the panic, about the pre-panic about the pre-pre-pre... (I'm exhausted even thinking about it. What a vicious circle.)

I recently had a day of panic attacks triggered by buying a $3 mouse and then having buyer's remorse. For $3. When your nervous system is keyed up enough, I think it can be set off by anything.