There might be a problem with your paypal settings. Why not ask help to the paypal support, they can help you for sure.
Its fixed, but still gmail places real paypal notification emails to spam folder. not sure what the problem is!
As you thinking this is not a big problem. But in reality this is a HUGE problem. please call paypal as soon as possible and tell them your situation. Thanksss
just take all paypal emails and add them to your email address book (whitelist). In that way you wont get the mail sent to spam
May be you gave them wrong email or try contacting them , they have good customer care buddy , usually they respond in a very nice way in 1 day only.