I am a 50 year old male in relative good health.  Today at work I started to get slightly lightheaded.  I drank a few glasses of water and ate a salad, but the lightheadedness has continued.  It is slight, but I present.  No other symptoms seem present. My primary is on his day off.  I am uncertain if this feeling is worthy of going to the emergency room.
Howell come to ChatDoctorThank for asking a question Your concern being appreciated, light head symptoms may have several causes but the most common is hypoglycemia, cerebral ischemia, labyrinthine, some time may be undetected hypertension, and others, have some rest, eat something, if you are hypertensive then check the blood pressure, and in case of diabetes get done the plasma glucose level, Only advise I would give you is to try Betahistine till you see your doctor, but is nothing to worry, if the symptoms are not severe else you have to see the ER just to rule out the cerebrovascular condition hope this information helps.