It's almost constant at this point, I also get random tachycardia and chest pain. Emergency room tells me my hearts fine but I can't get the alarm bells to shut off, ever since I recovered from covid and got the vaccine I've been extremely paranoid I have an infection in my heart. It's to the point my stomach gets a really weird nauseated feeling. I could honestly just sleep all day from lack of energy and motivation. Cardiophobia is a evil miserable bastard lol.