Hello i have constant high blood preasure along with a feeling of vibration on chest almost non stop get faste

hello i have constant high blood preasure along with a feeling of vibration on chest almost non stop get faster feels like it judders takes my breath docs say its panick but im starting to worry its since a night out with friends i neally collapsed ever since i havent been my self felt very confused i try to get out and about but i just dont feel comftable on my feet feel im goin to die any minute i have a feeling this is my heart any ideas on hat this could be im 20 years old had 3 ecgs a blood test all come back good im confused i dont like the thought of death some time the fluttering goes that fast i feel i cant feel my arms an stuf then i feel dizzy and clammy im taking beta blockers i have got better over the last few days but i just want to be my old self again im to young for this im missin out on life an its getting to me i dont feel rite anywhere ive gone from a healthy lad who loved gym working out to someone who dont want to go out i feel im living in a dream world