Because you are.
I don't think anyone actually cares.
Then why are you so bothered, if you're not lying...? There will always be those who presume you're lying but as long as you know you're not then that's all that matters.
because you joke too much. or maybe thats only with me...
yup. just me.
Perhaps it is where you are saying things or what you are saying.
As you wish
You sound confused.