I once cried for hours because one of the belt loops on my jeans broke. In that case, it was my way of venting negative emotions from the overwhelming challenges I was having at the time that I couldn’t express. I am still like that sometimes, where I hold it together over the hardest things, but something tiny just pushes me over the edge and I can’t let it go for hours, sometimes days.

I’m not sure what yours could be, maybe a traumatic memory of accidentally losing something or someone valuable to you? Anyway, if it’s happened before, it will pass. I usually just wait mine out like little agony storms, but if it affects your life too much, or is accompanied by other distressing signals, maybe see a therapist. Good luck!