Questions About Hydroxizine

I need serious help changing my life for the better.?

Im a 15 year old girl named Elaine. I have no idea why, but last winter around the end of December I started getting dizzy spells really often. I went down to the nurses office and there was a sub nurse there (I didnt know it was a sub, I had never been to the nurse before) who offered to check my pulse and blood pressure. She said my pulse was irregular and my blood pressure was a tiny bit low. after hearing this, my brain immediate jumped to the conclusion that I had a serious heart condition. I stayed home from school for the next two days out of fear that the dizzy spells would get worse. They did get worse when I went back. I went to the nurse again and this time it wasnt a sub. I told her what happened and she said the sub was wrong. My pulse and blood pressure were normal. My dizzy spells slowly worsened, eventually becoming full on panic attacks. I went to the doctor and they prescribed me Sertraline (generic Zoloft) as a daily medication and Hydroxizine as a medication to take