Although separation anxiety is common in dogs, cats also develop stress when left by their caregivers. A cat that is uncomfortable being left alone by their owner will sometimes urinate or poop outside the litter box. They may even go ahead and pee on the parent’s bed.
Another way a cat shows anxiety is by yowling or crying excessively. Some will destroy your things for example claw on curtains, eat up your shoes or topple over house plants. This is common in male cats while female cats will groom excessively.