I've had mild nausea for over a week now--enough to change my diet, but no vomiting & was able to continue work. At night, I often have face flushing, unrelated to food or alcohol (I don't drink; no spicy foods). No fever. Should I see a dr. or let it run its course? Have headaches, but w/ fibromyalgia, that's typical. I have had a lot of work=related stress just recently