How long is he like this?
Is he eating?
Do hhis eyes dart back and forth?
Terri
Dear frien,
I am so sorry your boy is poorly.
Weight and hair loss is usually related to hyperthyroid. The cats eats great but the excess thyroid hormone burns up all the calories.
http://www.sniksnak.com/cathealth/hyperthyroidism.html
The problem is that this disorder can lead to your baby developing diabetes, high blood pressure and other ailments.
We do have excellent meds for this but is is necessary to do a T4 thyroid blood test.Any other thyroid test can be inaccurate.
It can also be related to renal issues especially if there is excess shedding because the hair becomes very dry.
Stress weakens the immune system and can lead to illness.Dental disease also depresses immunity and sends bacteria into the organs.
It sounds like he has a vestibbular issue maybe caused by an ear infection:
http://www.marvistavet.com/html/body_vestibular_disease.html
It is better if he does not eat dry food. Canned will ensure he gets adequate fluid. Cats his age can become dehydrated more easily. A dehydrated cat is not motivated to eat.
He should also be checked for:
http://www.sniksnak.com/cathealth/uroliths.html http://www.sniksnak.com/cathealth/fusfaqs.html http://www.sniksnak.com/cathealth/urethral.html http://www.sniksnak.com/cathealth/hyperthyroidism.html http://www.sniksnak.com/cathealth/diabetes.html http://www.sniksnak.com/cathealth/renal.html
All of these are treatable so try to have him seen straight away.
I hope all will be well so please let me know how he is doing.
Best wishes for him,
Feline Healthcare Expert
Expert in feline health and behavior. 20 years experience with cats.