My sister's been in and out of the hospitals in our area for several weeks now with:
corneal abrasions on both eyes from an unknown cause, intermittent migraines for several weeks, same with regular headaches, sore neck, developed strabismus in the left eye causing it unable to look right in the last week and a half.
So far no doctor has the slightest clue what is wrong with her. Overall time period is approximately 2 months since the abrasions first appeared, migraines came about a week or 2 later.