U.S. doctors online nowAsk doctors free
Canada
A 20-year-old female asked:

70% time when i sit up/get up i get horrible head rush, all i see is black and my body shakes. i'm 20lbs underweight but eat normal?

2 doctor answers4 doctors weighed in
Dr. Bassam Amawi
Psychiatry 50 years experience
As above : U could be having orthostatic hypotension , see your PCP for evaluation and work up.
Dr. Charles Glueck
Clinical Lipidology 58 years experience
Postural hypotension: Have your blood pressure measured lying flat, and then after sitting up. Then, have your blood pressure measured when lying down and immediately after standing up. If the change in posture causes your blood pressure to drop more than 15 mm hg, follow up with your doctor. You may be anemic, could had adrenal problems, or thyroid problems. Cj glueck md.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership
Last updated May 1, 2016

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.