Complaints versus expressions of feelings

Up to this moment, it never came across to me that i may be annoying to somebody because i talk too much about things. I just realized that to somebody, i am actually complaining a lot about things and it struck me that i may be presenting to be quite annoying at times. What a shocker! I always thought that i was sharing my personal life experiences/thoughts/opinion all these while to my friends/family and on the other hand, all the listener wants to do is to shut my mouth up. I do recall times when i get annoyed at people for complaining too much and here am i, doing the same thing over and over again until being told of recently. This left me not really sure of what to say/do already. Am i being overly reactive that i tell people too much? Or should i just shut up and don't say a thing any all because people are just not so interested?