Do you have a bitter taste on your tounge and in your mouth whenever you eat something? Will the bitter taste last for a while, even after clear liquids have been consumed? Doesn´t it feel metallic and foul too?
Well, don´t think of replacing all your old teeth fillings in a sudden rush, as you might have been eating a healthy salad or fine pasta not so long ago. Which had pine nuts in the meal, in case you forgot to remember this.
This symptom has been reported for a while, as you can read
e.g. here. The good message is it will go away again, the bad is it might last between three days and two weeks. Sources claim this only happens with cheap imported brands of pine nuts, e.g. the small ones from China. And it doesn´t happen to all people eating the same batch. Insane!