Symptoms of feline insomnia:
1. After a female cat goes into heat, her reproductive organs will swell. Although the cat will not menstruate, there will be a small amount of white mucus discharge.
2. Many female cats become clingy after going into heat, rubbing against their owners repeatedly, rolling on the ground, and often raising their buttocks high as if making mating motions.
3. During their heat cycle, male cats will try to escape from home to find female cats to mate with, so they may engage in dangerous behaviors, such as jumping out of windows. Some male cats, once they escape, will never return home.
4. Male cats in heat will howl incessantly day and night, mainly to attract female cats. Their genitals will also become engorged with blood during this time, and they will urinate everywhere, spraying urine vertically onto objects. 
Cat care tips for cats in heat:
1. When a cat is in heat, hormonal changes cause her to burn more energy, so she needs more nutrition. Cat owners should feed their cats her favorite foods to ensure she gets enough nutrients.
2. Increase your cat's exercise by playing with it using toys such as cat wands or laser pointers.
3. If the cat owner does not plan to breed the cat, it is recommended to take the cat to the vet for spaying or neutering after the cat's heat cycle ends, especially for female cats, as heat and childbirth can cause significant harm to their bodies.
4. To scientifically alleviate the pain of a cat in heat, you can gently pat the cat's rump and massage the base of its tail. This can help relieve the cat's anxiety during heat.
