I've never really dealt with bad anxiety before but I do have medium anxiety but I accidentally took 2 clonidine about 5 day's ago and had a crazy panic attack I was gonna die in my sleep from a heart attack. (Clonadine is a blood pressure medication prescribed for ADHD and anxiety in my case) and ever since then I've just had roaring anxiety about a heart attack and it won't get off my mind. I used to love going to bed at night now I fear it like the devil because I'm scared I'm going to have a heart attack in my sleep and die. It doesn't help I've been getting chest pains (probably from the anxiety) and I'm constantly checking my pulse and BPM which chills around 55-70. I shouldn't have any heart problems due to the fact I'm 14 and non of my family as I know of has any heart problems. I just fear going to bed and frequently break down because I don't know what to do because I've never dealt with extreme anxiety like this. Any advice would help