BB Curve 8900 :: Getting Same Emails Multiple Times And Not Syncing

Only now are they not syncing up with my computer view of my email account. I tried disabiling and reenabiling the settings with no luck. I also keep getting the same few emails multiple times- like 12 times, each with a half hour in between. I thought this was a security issue with my email account so I changed my password, but no such luck. I attempted to find a way to contact Gmail and Blackberry directly, thinking it might be a problem on their ends, but I failed at finding a way to communicate with a Gmail or a Blackberry rep directly.