My pet vomits yellow bubbly liquid once or twice a week. He looks nauseous and is suffering. What would you suggest I do?

I had my pet neutered. To protect the surgical wound, we bought clothes at the hospital before coming home, but he never liked being dressed and started biting it as soon as I put it on. My family had been keeping watch while we were awake, but the next morning we found that he'd taken them all off. I guess it freed him from the stress of having clothes on, but I'm concerned about the wound. He's been licking the wound now that it's exposed. Do you think I should do something? Please give me advice.

An advisor from a magazine told me that my dog has either cataracts or a subdural hematoma. I've been on welfare and cannot afford to go to the vet - what do you think will happen if I don’t take her? At the moment I'm using eye drops for red eyes in humans. I do want to take her to the vet but I don't have enough money, and I don't know what to do.

Ever since he got neutered, my cat tries to mate with a cat plushie and has been meowing a lot. Is this due to changes in his hormone levels? Do you think they'll go away if we adopt another cat?