I keep having episodes during which I have a lot of intense feelings going through my head, and I cannot calm down. I feel extremely anxious to the point I cannot step outside of my room, and when the episode ends, I feel extremely exhausted, dizzy, and sleepy, but my heart also keeps beating fast for a while. I can easily sleep for a whole day after that.

I don't know how to describe it better, and it has been happening to me more frequently these days, to the point I'm not going to my classes at all, and I'm not eating too much since I'd need to step outside to buy food.

Do you have any idea of what this could be? As for the medication I'm already taking: Levothyrox (25mcg) (for my thyroid), Brintellix (15mg) (for my depression), Risperdal (3mg) (for my anxiety).