Hi,
Welcome to the forum! I know that ear blockage can cause a person to lose their balance but all of the other symptoms you have mentioned all relate to epilepsy. My advice for your friend is to see a neurologist and have a e.e.g. done this will show if there are any seizures. I 've had epilepsy for 35 yrs. now and I found I got the best help going to a University Hospital where there's an Epilepsy Center. There a person can work with an Epileptologist, Dr. who specializes in Epilepsy, a neuropsychologist and neurosurgeon. All these Drs. work together as a team.
Check out these web pages for more info.

www.epilepsy.com

http://www.neuropat.dote.hu/neurology.htm
when the main page comes up click on epilepsy

Here's wishing you well and May God Bless You!

Sue