woke up with impending doom. what to do???

literally as soon as i woke up at 8 (its 9 now), ive had the feeling that either i have an appointment, my mom is gonna leave to see someone, or something is going to happen. i literally feel crazy, my anxiety is so high. i dont even know what to do…. ive literally never felt this way. granted, im on my period and my anxiety gets crazy so im thinking its just that. i feel like i could just throw up everywhere.

ive seen so so so many people say that when they feel impending doom that somethings wrong, like medically. but i definitely dont want to go to the hospital but im freaking out.