Hello doctor, Ive had this feeling of light-headedness and dizziness for the past 3 weeks as well as pains in the back of my head which makes me feel when im standing im going to keel over. Also when ive had a sugary drink or something to eat i feel very thirsty. Ive been to the Walk in centre frequently and theyve checked my BP and checked my reaction to things which were ok a week ago. Ive also had bllod tests. These results are due monday. i feel a little more dizzy yday and today. Do u suggest i ring my out of hours doctor and get their advice? What do u suggest