Is it normal to feel overwhelmed and remorseful absolutely no reason?

Of course, sometimes I do have a reason for these feelings. However, other times it's completely unjustified and random. I just wake up or lay awake at night feeling overwhelmed or remorseful for absolutely no reason at all behind it. It's not just during those times of day but that's when it seems to happen the most. When I'm around my friends, I can't help but feel like apologizing for every little thing I do. Being bombarded by irrational negative feelings doesn't seem normal to me, but what do you think?