Am I stressed out and having panic attacks?

I try to fall asleep but I am experiencing hot flashes, shaking, my stomach is upset, and my heart is pounding. Since school was let out and my boyfriend has broken up with me I have been having trouble sleeping at night because I have a fear of death. I stay in my room all day worrying about stuff and I literally worry myself sick. I am trying to get myself busy to get stress off my mind.. Am I just going through stress?