What could this be? I'm worried!@?

Seriously, this sounds like a panice disorder. This happened to me not too long ago and I thought something was wrong with me. They tested me my blood and urine for everything and they couldnt find anything. They even tested me for a peanut allergy!! They found out that I had a panic disorder and they put me on zoloft. Within a week, all my symptoms were gone. I know that you are set on thinking that something else is wrong with you, but I would be open to the idea that it is a panic disorder. Like I said, I didnt want to think that it was a panic disorder, but I also didnt want to live like that so I took my doctors advice and started the zoloft regimen. Hope you figure this out and everything gets better! GOOD LUCK!