If your cat begins doing their business everywhere but their litter box (also known as inappropriate elimination), they may be telling you it’s time to clean it.

Alternatively, Blass explains that a sick cat may actually go to the bathroom in front of you or in a prominent place, such as in your bed or on the couch.

Cat parents often miss this sign of stress, instead assuming their feline friend is simply misbehaving. You’ll need to really analyze your cat’s behavior to decipher why they’ve stopped using their litter tray.

What You Can Do To Help:

Always keep your cat’s litter box clean, following the rule of one box per cat—plus one extra box. Having the correct-size box (a bigger cat needs more room) can help erase your cat’s bathroom distress.

Assuming it’s clean, your cat may need an appointment with the vet. If potential physical causes are ruled out but your cat’s behavior persists, you may want to consult with a cat behaviorist.

When a cat is overly stressed, they may stop eating normally, Blass says. You may notice your cat leaving their once-liked meals behind in their food bowl.

Conversely, some stressed cats want to overeat. If that’s the case, your cat may engage in vocalizing—meowing more frequently than normal—for additional food. They may also remain in the room where you normally feed them all day. If this happens, it’s possible your cat is stressed or has developed a medical issue.

What You Can Do To Help:

Did you recently put your cat on a new diet? If so, this could be the cause of stress. The best way to keep your kitty calm and happy is to make food changes slowly. If your cat refuses the new option, try something else.

Cats who do not eat at all—for even a day or two—can “get very sick very fast, so always inform your vet when your cat stops eating, particularly if the cat is very young or elderly,” Blass notes.

A cat who wants to overeat could be suffering from boredom, she adds. One solution is to put their food in a treat ball. You can also get them moving more using a feather toy or wand.

“If your cat is suddenly very combative, that is a huge red flag,” says Reimers, who cites such aggression, along with appetite changes and eliminating outside the litter box, as “your cat’s way of telling you something is not right.”

After the vet gives your cat a clean bill of health, then it’s time to determine what changes you’ve recently made in your household that could be causing the stress, she adds.

What You Can Do To Help:

Give your cat a lot of love and attention if you’re experiencing changes in your home because this offers reassurance, Reimers says.

If you’re adding a new pet or a new family member is joining your home, she recommends using calming diffusers, like Feliway® plugs, in your home, and adding stress relief supplements, like Rescue Remedy®, to your cat’s water bowl to help them relax.

Cats may become aggressive if they feel their environment is being threatened, Blass says. Remember that the threat may or may not be real or it may have passed if it was real at one point. What matters is that your cat feels there’s a threat. The solution is to “de-stress entirely and help your cat find a new normal.”

Oh, that feline yowling! “When cats begin to age and experience discomfort, they often begin to vocalize more,” Blass says, adding that cognitive changes can affect a cat’s mood and sense of well-being.

What You Can Do To Help:

Once your vet has ruled out any medical issues, take note of when your cat yowls or makes any other vocalizations.

Early morning or nighttime vocalization can be related to cognitive changes, Blass notes. Try using natural calming remedies, such as PetHonesty® Dual Texture Calming Chews Supplement or Vetoquinol® Zylkene® Supplement, and providing your cat a safe room free of loud noises to sleep in, with easy-to-navigate furniture or cat posts to help your aging kitty.

“Having play sessions and making sure your senior cat’s food needs are met will also keep him on track,” Blass says.