HealthCareMagic is now Ask A Doctor - 24x7 | https://www.askadoctor24x7.com

Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
159 Doctors Online

By proceeding, I accept the Terms and Conditions

Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

HCM Blog Instant Access to Doctors
HCM BlogQuestions Answered
HCM Blog Satisfaction

What Causes Dizziness And Headache After Fasting?

dizzy, headache. fasted today. about an hour ago, ate mixed nuts and a Lara Bar to break the fast. Warm shower, too. Still lightheaded. Cannot remember my last bowel movement....was it 4 days ago? ...not sure. I am away from home (often get constipated on the road)
Mon, 10 Jul 2017
Report Abuse
General & Family Physician 's  Response
Dizziness,Headache after fasting would be the symptoms of slight hypoglycemia.

Without glucose which is the solely source of energy to the brain it will makes your brain vasodilate therefore give you the symptom of dizziness and headache. Having Warm shower will make the headache even worse.

I would suggest you to drink a glass of water with some sugar in it or even a candy or chocolate.

Drink plenty of water and try to eat a lot before you fast.

As long as your bowel movement is good (Flatus) you are fine. You don't need to take a big one every day.

thank you.
I find this answer helpful

Note: For further follow up on related General & Family Physician Click here.
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer. For a more detailed, immediate answer, try our premium service [Sample answer]
Share on
 

Related questions you may be interested in


Loading Online Doctors....
What Causes Dizziness And Headache After Fasting?

Dizziness,Headache after fasting would be the symptoms of slight hypoglycemia. Without glucose which is the solely source of energy to the brain it will makes your brain vasodilate therefore give you the symptom of dizziness and headache. Having Warm shower will make the headache even worse. I would suggest you to drink a glass of water with some sugar in it or even a candy or chocolate. Drink plenty of water and try to eat a lot before you fast. As long as your bowel movement is good (Flatus) you are fine. You don t need to take a big one every day. thank you.