i have a question about fast heart rate?

[BlueBlazer]

anxiety disorder for sure.

Possibly, but not necessarily for sure. One of the side effects of cannabis is a slightly elevated heart rate. Depending on what you're smoking, you can become very aware of your bodily functions. If noticing your elevated heart rate makes you anxious, it could trigger the fight or flight reflex which means an even more elevated heart rate. One feeds the other. It's happened to me before on occasion. Once I chill out and think of something else, everything is fine.

[higher4hockey]

That used to happen to me, so I quit smoking and now I drink... never looked back.