Metalic taste in mouth during pregnancy

I am 11 weeks pregnant. For the past 2 weeks I have had a metal taste in my mouth and it seems to be worse at certain times of the day. It seems likes the taste is all over my tongue almost like my own tongue tastes like metal. When I eat I do taste the food and the metal taste in my mouth goes away but then it comes back when the flavor of the food is gone and no matter how much water I drink it still doesn't go away.

I have been taking cod liver oil. could I be tasteing the mercury in it. Its not supposed to have mercury in it but who knows if that is true, What if it does. Yikes!

Is this normal during pregnancy? What causes this? Will it go away? Is there anything I can do? Any help would be greatly appreciated!

Thanks

Sarah :) Tweet