Question: what are severe headaches symptoms of?
Answer: Moderate to severe pain (often described as pounding, throbbing pain) that can affect the whole head, or can shift from one side of the head to the other.
Sensitivity to light, noise or odors.
Blurred vision.
Nausea or vomiting, stomach upset, abdominal pain.
Loss of appetite.
Sensations of being very warm or cold.