It seems my fears of getting a heart attack have grown since last week! It happened when I cut down on the propranolol (my doctor suggested it to me) to save some until I got a new supply but then one night, I woke up at 4:30am with negative thoughts and my heart beating really fast that I can take another propranolol that night which got me taking them 3 times a day again. Because of that, my fears of a heart attack just got worse. I spend a lot of time in fight or flight mode getting panicked whenever I think I'm going to get one. I've now convinced myself that my takings of propranolol have put myself in danger of an attack even though it still hasn't happened. Is this all just anxiety? I'm only 22 years old and nowhere near overweight so I'm fine right? Thank you.