I hav e lost my taste, pepsi has a funny taste, all foods taste funny, candy and sweets are the worst, has anyone else lost taste?

My taste buds have changed also, But my sweet tooth has INCREASED 100 fold, but I dont seem to like anything with tomato sauce, spaghetti, chili, pizza...the tomatoes taste different, like paste.......everything has an aftertaste.....What about smell?? I seem to have this odd odor in my nose almost chemical like.....