i would recommend seeing a dr right away. my husband and i both suffer from anxiety and heart palpitations. i have really bad fatigue. i have slept for over 48 hrs and still felt tired. my husband does not have any fatigue. we have never had tightness in our chests except during an anxiety attack but it goes away. from previous experience if you are having any kind of chest pain tightness or whatever and it is not getting better. you need to see a dr right away. there could be something else going on. i wish you the best and i hope that my input helps in someway.
weird heart problem possibly? (20/female). so i usually have heart palpitations because i have anxiety disorder. but recently i've been more fatigued than usual my sleep paralysis has gotten worse. my chest is tight and when i breathe in it hurts and i cough. i've been a weird sleeper all my life but recently i've been sleeping 10-14 hours unintentionally and i'm still tired. if i'm up and active i get weak and tired easily and winded very quickly. i take 10mg prozac and 600mg lithium. there's rarely cause side effects besides shaking.