My 3 month old shakes her head back and forth and crosses her eyes.

Hello. My baby (first time when she was 3 months old) would shake her head back and forth and her eyes would cross and go every where. Does anyone have any ideas why she's doing this?

[spade22]

Have you mentioned this to her doctor?  If not, please do so.  Your description almost sounds like a seizure.  I am not saying that is what is happening and no one online can diagnose so it is important to have her evaluated to rule something like this out (or in).