july 4th, i had a strange feeling of things seeming as if i was in a movie and i lost my general sense of time and i didnt reconize my voice or mouth. i am frightened because i have felt this for about two months and i am losing hope and i have fallen into a state of suicidal dpression... things dont make sense, i have some short term memory and the little things that made me happy dont anymore... so tell me, is this anxiety or a head injury? why did it come on so suddenly without warning?