I personaly find it really hard to deal with the after effects of alcohol. I am extra sensitive to headaches. Getting shit faced, dizzy as fuck, trippin over shit and puking aint my idea of fun. I like weed, the only after effect is a mild burn out and its relaxing.

Is the high weaker with a vape?

I'm not a doctor, but with the heartrate thing, just drinking a couple cups of coffee can have about the same effects, nothing to worry about.