Why is my heart always beating so hard and fast?

im 13 years old and my heart was beating really fast when i went to bed and i couldnt sleep (this happened one time before) but if i watched a movie or kept my mind ooccupide it stoped beating fast and i kinda have panic attacks sometimes and someone...

its quite scary sometimes.. sometimes i feel like choking n woke up with my heart beating very2 fast sometimes breatheless ... its been going on for quite sometime. i;m on the overweight side is it due to my weight...

I'm 28 years old and have chronic anxiety disorder. I know it may seem silly for me to ask the question that I am asking because rapid heartbeat is symptom of panic attacks. But this time, I was just laying on the couch, relaxing and my heart started...

The only way I can get it to go away is if I lay down flat and put my feet up. It's so strange because it goes from almost beating out of my chest to completly calm. Any ideas. I had a heart mo iterative hooked up but didn't have an episode during that...

When I get really hungry my heart pounds I was eating and I measured my Bpm and it was 110. Just randomly what's wrong with me? It jut kinda happened all the sudden.

I'm 17 years old, and I'm of normal weight... I eat healthy with the occasional junk food here or there. During the summer I'd go biking 1 to 3 times a week, but now that it's getting colder I haven't really been keeping up with it lately. I don't know...

My name is Shawn i'm 17 yrs old i smoked weed (marijuana) for about 2 years since i was 15....i also smoked cigarettes...i would say about 10-30 grams of weed (marijuana) daily for about 2 years....i stopped smoking when i turned 17 due to rapid heart...

This is going to be a long story, but any help would be amazing. Last night at my friends house we smoked some weed, before we smoked though i had a Benadryl for my allergies, just one of them. The weed was some really really fire kush, Red hairs, purple...

When I jog up the stairs in my house, my heart starts to beat really fast. I don't know why. It doesn't seem like such an exercise just to jog up the stairs, but when I reach the top I notice my heart beating really fast. I was diagnosed with sinus arrhythmia...