17F twitching

17F,

5'10

125 lbs

Caucasian

I've been having minor muscle twitches all over that get worse when I move a lot and a fast beating heart, more elevated than normal after just walking for 48 hrs. I did put on a little heart rate thing though and it was 75-80 bpm so I might just be more aware of my own heart? Also tension in upper left shoulder.

No smoking/drinking/drugs

It sometimes gets a little better when I distract myself but I feel very tense and worried about it