When we hear something and no one else does like if we hear our name called or someone say something what do you think it is? Is just in our heads or could it be our guardian angles trying to tell us something?

You know, that's an interesting thought! I never thought about it that way. Now I think I'm going to be wary when I think I hear my name being called. 

Usually when I think I hear my name, somebody called a name that is similar to mine. Most logical people will probably say something like "Your brain is trained to hear your name, so when you hear things similar to it, (Ex. Name: Gina Name/Thing: "beans and" or "Lena") your brain kicks in!" But a person who is geared more towards religion might have the same idea as you, that God, or our guardian angel is calling our name. 

I guess it just depends on who you are. Personally, I lie somewhere in between now that I've heard your theory.