Why do I have a constant headache and feel sick?
Why do I have a constant headache and feel sick? Migraines are the most common cause of headaches that occur with nausea. Dehydration and low blood sugar are also frequently responsible. Some causes are more serious. Several affect the brain, such as meningitis, brain aneurysms, and tumors. Is nausea and headache a symptom of COVID-19? Not everyone with COVID-19 has these symptoms. For many, symptoms are mild, with no fever. Some people may also experience fatigue or gastrointestinal symptoms such as nausea, vomiting, diarrhea, or abdominal pain. You can still spread the virus to others even if you have mild...