An “emotional hangover” is similar to a typical hangover in which you remember certain details from the day before, you might feel guilty about something that transpired (even if you did nothing wrong).
Your body may feel stressed or tired, and you would rather just rest. This state of emotional exhaustion can last all day, a few days, or even weeks. Some people recover from “emotional hangovers” very well, while others may plunge deeper and deeper into despair. At this point it will be essential to pursue medical or mental health services.