Hearing Loss/Migraine Attack from Scratching Outer Ear with a Qtip??

[Foxyjazz]

I have recently been diagnosed with a type of migraine that affects the auditory portion of my inner ear (produces permanent or temporary hearing loss), as well as other areas of my head in general ( get a variety of other symptoms).  It is very easy for me to trigger migraines through any loud noises, pressure changes in the ears or atmospheric pressure changes, as well as various postural movements and straining/running/exertion.  

However, some triggers remain poorly understood by me.  The other day I was scratching the very outer portion of my ear canal with a q-tip (I never put them deep into the ear canal!).  I believe I got pollen in my ear earlier on so I scratched a little vigorously and pressed down on my ear a little bit to eliminate the horrendous itch.  After I was done scratching some of my facial muscles went into spasm and I lost a little bit of my hearing in the high frequencies in that ear.  I also found it a little bit hard to speak for some reason.  The whole rest of the day I had the feeling of a weight attached to my head.  Although many of my other symptoms have recovered, the hearing loss remains.

I have scratched my ears plenty of times and much more vigorously to no ill affect until now.  I understand that cranial nerves are present near the outer portion of the ear, and potentially arteries?  My theory concerns that I may have nicked my vagus nerve by accident which produced all of the symptoms described above, but I don't really know whether I may have instead either jiggled my eardrum too much (from the movement of the outer ear, which may have produced vibrations) or triggered a blood vessel spasm in the inner ear(migraine attack).

Would anyone have an opinion as to why this would have occurred?  I would really appreciate any insight!