Hi,
I'm not sure about ear ache, but every time I improve my diet and do some kind of cleansing, after about a week I get this tooth ache, which goes away after a couple of days.
I even went to the dentist to have an x-ray and it showed no problem.
Also, when I go further with the diet I get a terrible back ache.
I guess your ear ache is part of the healing crisis, don't forget that before you get better, you get worse!