Decreased intelligence/ ability to perform?!

Decreased intelligence/ ability to perform?

basically, i was valedictorian of a good sized high school class, and took pride in my ability to learn easily and impress instructors. well, i feel that ive hit a wall. this past year, i suddenly lost my ability to concentrate...i think. im having trouble telling if its a concentration thing or if i simply cant digest information. i feel as though ive become very disorganized and cant remember things. my mind goes blank out of nowhere and i lose track of my thoughts. i cant get into projects because things simply seem more difficult. i am being treated with depression and anxiety as a result of this, but am not diagnosed with anything and am not really certain that this is the problem. my doctor doesnt seem very certain either, and everything is very trial-and-error. i was just wondering if there might be other possible causes of this new retardation of my academic abilities.

5 days ago
even things like names, i have trouble with. i have struggled to find my roommates name, as well as those of close friends at times. often, i wont come up with the name of the person i was attempting to talk about or address for days.

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