Head shake symptom - Spencer

[Nina]

Another of Spencer's symptoms I failed to mention is head shaking.  He's 
not doing it a lot, just enough for me to notice.  I usually think ear 
mites when I see someone shake their head.  Spence's ears are clean.  
The vet thought possibly something neurological, (she's so upbeat).  Do 
you guys know of anything else that head shaking is a symptom of?  I 
noticed my pride and Joy little girl, Petey, shaking her head this 
morning, (that's what got me up at dawn this am).  Here we go again with 
seeing symptoms and phantoms.  I can't believe I have felv in my house 
again.  Poor Spence has the double whammy of felv and fiv. 
Please keep the prayers coming,
Nina