I have a headache, a burning sensation in the mouth and I'm a little dizzy . It occurs intermittently for several weeks.

Since your symptoms have lasted several weeks, you need to go to a doctor to be able to make a full assessment. Two weeks experiencing headaches with dizziness and burning sensation in the mouth is somewhat alarming. Please make an appointment to see your doctor. If you are worsening headache or if you develop a fever, vomiting or weakness, should go to the ER. Furthermore, it is unusual, but please make sure monoxide levels in your home are normal. Firefighters (by calling the non-emergency number) should make it free. Carbon monoxide can cause headaches and dizziness.