I'm Dr. Jo and I'm here to discuss your questions about Indy.
I'm so sorry he's having trouble, but glad you're looking for the information you need.
You may join the conversation by typing in what you want to say then clicking REPLY.
That way we can chat back and forth until you're satisfied with the information I've provided.
Indy certainly was lucky to find you when he did. It sounds as if he's really had a time of it.
The way you describe his lameness, it certainly sounds like a musculoskeletal issue, not a neurologic one, primarily because of the way it's worse when he first gets up then he works out of it somewhat.
This is typical for arthritis and joint trauma.
Additionally, torn ligaments and other soft tissue injuries don't generally show up on x-rays.
So it's very possible that Indy suffered permanent damage to his joins at some point early in his life that doesn't show anything on x-ray.
That being said, it's also possible that there could be one underlying disease - like you said - to create all these symptoms.
The first one to come to mind is FIP.
Feline Infectious Peritonitis
This isn't the common, or 'wet' form, but the dry form can be very tricky to diagnose and cause a variety of ocular and neurologic changes.
Indy's history certainly makes this a possibility as well.
FIP is also extremely difficult to diagnose. In fact, we never really can rule it out.
Another unfortunate thing about it is that there really isn't anything you could be doing differently to treat the problem, even if it is FIP.
Another possibility I'd encourage you to consider is more aggressive pain management.
This can be done by trying different and additional pain medications to what you've already used.
Or, this would also be an ideal circumstance for trying "alternative" therapies if your open to that.
Acupuncture and laser have been particularly useful in cases like Indy's where traditional Western medicine hasn't offered much in the way of success.
If Indy were my cat, that's most likely the avenue I would pursue.
Thank you for such a detailed response. Although he was completely wild, he is a dear, little cat and deserves as much help as I can give him. I am certainly open to alternative therapy such as acupuncture. I would hope not to have to travel too far with him, however as he is so timid. As regards ***** ***** seemed to help for 1 week, then seemed ineffective. Vet was reluctant to prescibe anything stronger. I have been giving him Corta-Vet HR capsules, ordered from the internet and a diet called Specific Omega Plus Support. Couldn't feed him fish - seemed to have strong allergic reaction. Hope I am not overloading him with this?