Hypoglycemic episodes can cause migraines People whose blood sugars are not stable and have Type 1 diabetes can experience severe headaches after an episode of low blood glucose according to a researcher from Dartmouth. Dr. Jacome, MD, from Dartmouth, Hitchcock Medical Center in Lebanon, New Hampshire, found that hypoglycemic episodes could be the cause of migraines.
He studied the clinical history of a patient with type 1 diabetes. It was observed that the patient, who had suffered from severe bouts of low blood glucose for 40 years, got a migraine after each episode once his blood-glucose levels were stabilized. Both the low blood glucose and the headache improved after the man was given valproic acid, a medicine to control seizures.
After a bout of low blood glucose, migraines, “may occur in patients with unstable diabetes as a rebound phenomenon,” Dr. Janocme states. Headache Oct. 2001