I don’t have the best track record with dealing with heartbreak anyway, but does anybody else feel severe anxiety after a breakup?

I’m 23. Going through a breakup this week, and I haven’t left my bed for three days, nor have I eaten very much at all. My anxiety feels like it is through the roof and I can’t focus on anything. I can’t sleep well, not that I did in the first place because of GAD.

Anyone got any tips to feel more human and/or to make time pass more quickly?