My family and i barely survived an ef5 tornado 5/22/11. now i'm having seizures, severe memory loss, & i get lost easily. i think my brain is damaged?

PTSD may be Dx: This is a severe physiological/emotional response to trauma or witnessed trauma.

Trauma: How fortunate that you and your family survived such a terrifying experience! i'm sure there's much that continues to affect you about this. All that you describe could relate to post-traumatic stress, and needs evaluation and treatment. Especially with new seizures, see your primary care doctor, who may also want you to see neurologist & psychiatrist. Help is available for ptsd, if present.