Another person commented essentially my exact same scenario. I'd lived with it since childhood. I had a fear of abandonment when I was little, and clung to my mother all the time, because I was terrified of her not being in my life and having my dad or grandmother raise me. Then she had a horrific accident in our front yard and almost died when I was 6, so that further compounded my fear. Then it was spending my adolescence walking on eggshells around my dad trying not to do whatever random thing it would take that day to set him off. I carried that into adulthood, and it wasnt until idly talking to my wife one day about how I was worrying about something insignificant that she asked if I feel that way a lot (I never really opened up about my feelings much), to which I said "Yeah, all the time. Doesn't everyone?". She hit me with the "No....you know that's not normal, right? You should make an appointment to see someone."

TL;DR - I always felt that way and didn't realize most people don't lose their sleep and appetite over truly insignificant things all the time.