Please help, is there something wrong with me?

I'm somewhat the same way, I worry about small things and tend to stress a lot. I also go through having the huge breakdown where I just cry the whole night & get overly upset and then the next morning I brush it off like nothing happened. I do not think nothing is wrong with me I think I might just have uncontrollable emotions. Sometime I think it also could do with my need of that certain reurance in life I need sometimes due to the fact when I was a child I had and still sometimes have problems with my self confidence.