I don't know how much advice I have for you. I get that way too. as Yellow_fleurs said, I just let myself cry for awhile and explain to loved ones that it just helps me process these difficult feelings. Although mine stem more out of irritation and frustration rather than sadness ususally. I think I'd come to the forum like this in the latter case or talk to a friend or family member or even my therapist if I had the chance (I had one therapist who let me write to her). Hope you feel better.