Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs DysautonomiaUpdated: 2018-05-24When to seek immediate medical careSee a doctor immediately if: Low blood pressure Nausea Bloating Weight loss Fainting When to make a doctor's appointmentMake an appointment to see a doctor if: Lightheaded when standing © 1998-2022 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use