Severe Travel Anxiety. But fear stop me!

Dear sir/mam , i had the first episode of panic/scared attack of having heart attack in 2016 , i rushed to ER after having mild chest pain. they did ECG and found tachycardia and told me that i have acid reflux. than i prevent almost everthing that could cause it all this years. Now in 2019 , recently i went to kedarnath trip with my family where i was again started to have high heartbeats and i scared so much that i dont want to travel anywhere. all that was throuh my mind was -how will i reach back my home or hospital if something bad happens (heartache etc.) . as there was no hopital nearby 250kms which will take 8hours drive.for whole 3-4 days my heart was beating faster -again after month i went on roas journey which is 700kms . started to get sam anxiety. -also i sweat lots and i can feel pulse in most part of my body provide me solution i can live my life without this suffering. i want to travel the world but fear stop me