Yawning is one of the first symptoms of migraine, in both kids and adults. A 2014 study has confirmed the link once again, and is giving more insights into the kinds of attacks linked directly to yawning.
This study looked at 349 patients, out of which47.2 percent reported repetitive yawning as a part of their migraine attacks. About 13.1 percent reported their yawning as a “warning sign” before an actual attack, which rest of them experiencing yawning as either a symptom both before and during the attack or during the headache phase.
This study also showed how yawning was associated with other symptoms. Some of the symptoms more associated with yawning included:
- Nausea and/or vomiting
- Osmophobia (hypersensitivity to odors)
- Changes in appetite
- Cutaneous allodynia
The most associated were nausea and aura and/or vomiting.
Many researchers believe that yawning may be due to sharp drop in dopamine levels during an attack in some migraine patients.
In some cases, yawning may also be related to hypoglycemia/hypoglycamea. Low blood sugar levels have complex relationship with migraine, but both of them have been directly associated with yawning and lower dopamine levels.
You can get more information on the study about Migraine and Yawning here.