Am i talking to myself?

Sometimes when im alone for long periods i do end up actually talking out loud to myself....usually i talk to myself anyway...just not out loud... i practice conversations... both sides, my response their response...i dont know if this is something only i do or everyone does...i hope everyone does ha ha .....its probably most obvious when im upset.. because then i cant seem to control it.. i have arguments with people if they piss me off about something and since their not there to answer i answer for them... its a really good way to win an argument though ha ha .