Only Google can help you. Here is the link to gmail support website :
On the other hand, if you have not used your Gmail account for over 9 months, it may have been deleted. You must then create a new one, insuring that you note your password and security question and store it a safe place, remembering where the safe place is.
Buno, Modo CS-CCM
L'urgent est fait, l'impossible est en cours. Pour les miracles, prévoir un délai...
The urgent is done, the impossible is underway. For miracles, envisage a time ...