I have a metallic taste and feel like i have travel sickness all day :-( been like this for about 5 days?

See your physician: I recommend that you see your own physician who can go over your medical history including any medications that you are taking, and personally examine you. No physician can give you a medical diagnosis over the internet, especially based merely on the few symptoms that you mentioned in your question.

Difficult to diagnos: Without more information. Probably best to be checked out by a physician given that it hasn't resolved.