I googled and found myself here. I have been suffering from a smelling disorder for about five or six weeks. I too smell an earthy smell in my urine, orange juice, wine, peanuts and bread ... and many other foods. Some foods 'exhibit' this odor more than others ... and I know for a fact this 'problem' is with me and not with the foods.
I've seen my family doctor and her questions went immediately to my sinus. I would appear not to have any sinus problems; I have no headaches per se or pain in my face, but if I still have this problem at the end of the summer she suggested I make another appointment. She also thought seeing an ear, nose, throat specialist wouldn't probably help me (in this particular case).
I'm 59, work out almost daily and apart from this am in excellent health. I had a very bad cold (with a lot of coughing) several months ago and wonder if that was somehow related.
Many years ago (25 or so) I experienced a similar thing - it seemed that foods that contained vinegar tasted very strange. It took me a little while before I realize the 'problem' was with me and not with the foods. I blamed that episode on a flu I had had.
If anyone has anything personally to share that could help me, feel free to contact me personally.
Thanks Dave Horne davehorne at home dot nl