Gmail — my account has not been shown

Dear sir,
My gmail avvount has not been shown on the gmail login site. My facebook and all other social networking site is connected through it, the social networking site are working but my gmail account is not opening. I have many mails to check and send so inorder to get my gmail account back please help be as soon as possible. I am many trouble due to this problem plaease sort out it as soon as possible.
My gmail id is harsh. [protected]@gmail.com, and to sort out alternate gmail id is [protected]@gmail.com.
Regards
Manoj sinha