Hello. I have, for the past few days, been feeling out-of-it. I m always exhausted and have trouble concentrating on everything. My vision has been slightly blurred, and I feel confused and overwhelmed. Feel like I m going crazy, just not like myself. Not sure what it could be or if I should go see a doctor. I do have high cholesterol, so I m not sure if it could have anything to do with that. Or possibly anxiety? Any tips or possible diagnosis would be helpful. Thanks :)