Went on a 4 day bender that ended Friday night, fast heart rate/poor sleep due to this?

Sometimes I overindulge which I definitely did last week. Drank more than I’d like to admit, maybe 3 liters worth of liquor, at a minimum. Woke up drank-ate-drank- and continued that till I slept. I was drunk the entire time. Saturday SUCKED and my heart was racing so fast I felt like I was dying. I’m feeling better but still feel extremely anxious and have trouble falling asleep (I’m having physical anxiety symptoms, not really mentally) could these issues be from the bender? It’s been 5 days since my last drink.