He's really skinny he won't eat he will only drink water he's very weak he can walk a little bit but he's not him happy go lucky self
It sounds like Lenx is experiencing some serious issues. When a cat refuses to eat and only drinks water, it can indicate various underlying problems, such as infections, dental issues, or metabolic diseases. Given that he is also very weak and not acting like his usual self, this situation is quite concerning.
At home, you can try to make his food more enticing by warming it up slightly or adding a bit of tuna juice or chicken broth. However, since he is already very weak and not eating, it's crucial to get him to a veterinarian as soon as possible. Cats can develop a condition called hepatic lipidosis (fatty liver disease) if they don't eat for an extended period, which can be life-threatening.
Please take him to a veterinarian immediately to get a proper diagnosis and treatment. The vet will likely perform a physical examination, blood tests, and possibly other diagnostics to determine the cause of his symptoms and provide the necessary care.
If you have any further questions, please feel free to ask. Thank you.