Coughing up what tastes like dry brimstone--just a little thin but opaque mucus with rather unhappy pinky-brownish tinge, and feel very tired. I take tramadol for my arthritis several times a day--helps mask pain so I can keep moving and keep weight down so I don t have even more stress on joints, and so on...but, anyway, wondering what the sulphurous taste is about--nothing serious, right?