Metallic taste in mouth?!?
Definitely ketosis. Do a google search on it. It is common among diabetics who are spilling large amounts of sugar into their urine. It is also used at a weightloss method in the Adkins diet plan. It will go away once you start to add some carbs back into your diet. Get some keytone strips from your local pharmacy in the diabetic section. It measures the level of ketosis you are in. It's not a bad thing. The higher the level, means that your body is metabolizing the fat quickly into sugar and expelling it through your urine. The metalic mouth is a side affect and a great sign that you have achieved ketosis. It happens when you consume a large amounts of protein and a very low amount of carbs.