Dunno about the metallic taste, but I've been having some weird taste buds since yeseterday (day 6) myself. Even the freshly squeezed 'ade tastes almost fermented to me. Really weird. And I just bought fresh produce tonight. It made me a slightly bit nauseous last night. I've brushed my tongue, and brushed my teeth a few times a day just to clear out the fuzzy white coating, but still no improvement in the "fermentation" type flavors. Even mixed a batch with lemon and still the same issue. Dunno...maybe taste is one of those things that goes funny for a few days on the MC. But you're not alone in the oddness of it all. I can't even stand the mint tea the last two days. So we carry on and see how things go from day to day.