Good post... certainly could be dental related. Especially the symptoms:This Sounds similar to what you're going through. If this is what it could be, the cat has to have a dental with full x rays of the mouth to detect.
Here is good info about FORL in cats:
http://www.felinecrf.org/dental_problems.htm
Here is thread on the ragdoll forum where she discusses her cats symptoms, which sound similar to yours:
http://www.ragdollcatguide.com/forum/showthread.php?tid=19253
I think you need to explore dental issues; you said his teeth have not been X-rayed, right?
I feel so bad for him! I hope you find the cause soon.
Common symptoms of dental problems include teeth grinding, not eating, pawing at the mouth or drooling. Some cats may approach food, then walk away. Your cat may also seem a little subdued.
Last edited: