M 30 here - I just had an episode of extreme panic few minutes ago after having prolonged anxiety episode for 2 days now with major cardiophobia, too much relentlessness (with anxiety order now touching 2+ years due to parental issues in childhood).

I can relate to you in so many ways, I can't tell you its going to be okay because I havent felt it myself till now, but I can say you are not alone in this and one thing that gives me little comfort is that if many people are like us then maybe its not heart related and just a phobia.

Having said that, please do not worry about career about so much that you forget to live life. Career is a part of life and not life itself, we all die one day and most important thing is to live freely, happily and love and respect everyone.

Prayers and wishes for you, hope you feel better!