Crying uncontrollably

In the last month now It seems every week I have 1 or 2 crying episodes. With each episodes I did genuinely have reasons to cry or be upset but the problem is once I start crying the tears don’t seem to stop. I’ll be crying for hours. Tonight I’ve been crying at least 8 hours, obviously with breaks in between but I keep trying to take my mind off what upset me but I can’t seem to. Maybe I just need to sleep and I’ll feel better tomorrow😅😅