Strangely whenever i eat peas or whenever i swallow chewed food sometimes it goes in2 my nose and when i blow my nose food comes out. why?!?!

You should seek help: That is not normal. I recommend you see an ear, nose ; throat specialist.

Need eval of swalloi: Please see a doctor soon. This could be a neurologic cause--so the complicated muscles of swallowing do not work together. A problem in the esophagus (like a pocket-) can cause this and is fixable. Start with a gastroenterologist or otolarygologist (ear nose and throat)-but do not put this off.