I have been on a low-fat and low- calorie diet for about a week now.  I am eating about 1,200 calories a day.  I am also a kindergarten teacher and have a very active day.  I am only consuming about 550 of those calories during the school day.   After lunch today I felt very dizzy and the floor felt very shaky I  and thought that I might possibly faint.  My hands were also freezing cold but no other symptoms.  Do you think it is from the low -calorie intake and if so what can I do to prevent this from happening?
Hello! Welcome and thank you for asking on Chat Doctor! It is true that a low caloric diet can lead to low blood sugar causing a similar symptomatology. This is because your body needs more energy for your daily activities. From the other hand low blood pressure can cause such symptoms too. Have you measured your blood pressure during this episode? If the problem repeats, I would recommend consulting with your GP and performing some blood lab tests