Primer on drywall? 10 points!? Please read to understand query! My room had drywall installed in the order...

Please read to understand query!
My room had drywall installed in the order of 5 years ago... nothing be done to it, it's just straight-up-you-can-still-see-the-nails-... My give somebody the third degree is: after i put a bit of puddy in the staple holes, can i just prime right resting on that? (My mom says that putting primer/paint right on drywall make the drywall release fumes! Is that true?) do i have to cover the drywall next to some kind of mud/putty stuff first? Please answer!
I just this minute purchased two "tuscan countryside"...
Answers:    Yes.. you might want to do a rushed sand of the putty then you prime next to paint...