Everyone gets angry. This is a normal feeling. Expressing it is normal too, however it is how your express it that matters. You have to ask yourself; what are you trying to accomplish? Do I need someone to listen to me? Does a problem need to be solved? Are we trying to get someone to do what we have asked?
When anger is expressed poorly, rarely will it accomplish our goal(s).
Again, anger is a natural normal reaction...we are human! Anger can become a problem if it starts costing us our health, jobs, friends and family.