Heart felt it stopped for few second.

Hello docs i am 19M and i don't really have any problems except some heart related ones. I have sinus tachycardia and pvcs that can happen in bigeminy sometimes (anxiety). So the other day I was just walking around my house when suddenly i felt this contraction(big contraction and that travelled to upper stomach before going away) This contraction sensation exactly happened in the center of chest going towards my stomach (thats how it felt like idk)i got so scared i touch my chest and usually i could feel my heart beating but i couldn't this time within all of this 5-6secs passed and i touch my neck pulse to check and my heart was pounding (probably cos i got scared) it went away in few mins.I didn't have any dizziness or any symptoms during this period.I do get tingling in my hand or hands sometimes,i get spasm like sensations around the heart,this feel of hot needles hitting my skin all over my body which makes me remove my t shirt and causes my skin to get red for few mins help