I would be worried, she has more going on than just a ear infection. I would try and video what she is doing, to show the vets.
Has she always did this, or is it new?
Did the vet thoroughly check her teeth, and jaws?
Not all those who wander are lost.
Life is just a leap of faith.
Spread your arms and hold your breath and always trust your cape.
Two things define you. Your patience when you have nothing, and your attitude when you have everything.