Hello, and welcome!
I'm sorry your furry boy is experiencing these problems.
Walking a little crooked and/or having weakness in his hind legs could be caused by various reasons. This could be a vestibular issue--the vestibular system controls balance and equilibrium and a symptom where a cat will walk like he's drunk or can't steady himself to walk straight (he could be dizzy, if this is vestibular syndrome), could be caused by an inner ear problem like an infection or a foreign object in the ear. Sometimes, there is no known cause and then it's called 'idiopathic.' Sometimes, this resolves on its own, but if there's an ear infection involved, of course he would need antibiotic ear drops to help clear that up. Here is more information:
If his left eye has appeared cloudy for the past few days, he could have an eye infection, a scratched cornea or other corneal abrasion. You also might be seeing his third eyelid coming up over his eye,which is common when there is general illness in the body or a specific eye problem.
Weakness in the hind legs can also be caused by neuropathy, sometimes related to diabetes, so the vet should perform a routine blood test, tomorrow, when he's seen in person.
A head trauma may also be the contributing cause of his symptoms, if he was running and banged his head coming around a corner, etc., unbeknownst to you.
I'm very glad that you plan on calling the vet tomorrow, so you can arrange to have him seen and get a diagnosis and treatment, if needed.
I hope all will be well with your furry boy and please let me know how he's doing and what the vet tells you. Thanks!
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