The processing of an application doesnât begin until after your appointment at the passport agency. If you canât get an appointment for another two weeks, for example, you can expect the total amount of time the process will take to extend to nine to ten weeks â if youâre lucky.
1 Silent migraines occur when you have an aura without a headache. 2  Migraine triggers may be environmental, related to food, or physiological.  Over-the-counter pain relievers may help acute migraines. If you experience migraines often, your doctor may prescribe preventive medications.
Researchers have identified possible causes, but they donât have a definitive explanation. Potential theories include: An underlying central nervous disorder may set off a migraine episode when triggered. Irregularities in the brainâs blood vessel system, or vascular system, may cause migraines. A genetic predisposition may cause migraines Abnormalities of brain chemicals and nerve pathways may cause migraine episodes.