-- Posted by Anonymous at 7:21 am on Nov. 14, 2008 and malnourished cause me to be freezing cold and dizzy and have a killer headache?   It is constant, though, even when I eat something it doesn't go away.   Should I look into going to a doctor to see if i should take even mroe vitamins than they already have me on?   -- Posted by Aerie at 7:23 am on Nov. 14, 2008 um, yeah go to the doctor. -- Posted by txbball08 at 7:24 am on Nov. 14, 2008 Yeah, cause the body is runing out of calories to burn for energy in order to keep all your systems from working properly. -- Posted by kaylalynn2008 at 7:56 am on Nov. 14, 2008 see a doctor asap. they'll help get you properly nourished again. -- Posted by 2kewl4u2know at 7:58 am on Nov. 14, 2008 If you're skinny, you don't have much to retain heat, and if you're undernourished, you aren't getting the energy needed to send oxygen to your brain so it's making you dizzy. Eat something already and go see a doctor. -- Posted by Leah Louise at 8:23 am on Nov. 14, 2008 i have anorexia and its lack of water which causes headaches..... drink more water ! -- Posted by Helios at 3:44 pm on Nov. 14, 2008 Yes all these symptoms are evidence of dehydration or vitamin deficiency caused by starvation and malnourishment. It is understandable that when you eat it doesnt go away. If you are serious about getting back on track, dieticians tell malnourished and anorexic people to eat a 4000 a day diet for 3 weeks along with a multivitamin every day to get your vitamins and minerals and proteins back up where they need to be.