Why is my cat making a gurgling sound?
1. The cat is in a good mood and feels very happy.
The purring sound a cat makes is produced by the vibration of its false vocal cords, which resonates through the throat cavity, resulting in this light and cheerful purring sound.
2. The cat wants you to come closer to it.
When a cat wants you to play with it or when it is very happy and content, it will purr to attract its owner's attention. It will also be very lively and make a loud purring sound. 
3. The cat is very comfortable when I massage it.
It will purr when the cat really likes someone or something! Some cats will purr whenever they snuggle up to their owner, and they will also purr when they are in a very lazy state.
4. The cat may have a respiratory infection.
If a cat keeps purring regardless of the situation, it is very likely that it has a respiratory viral infection.
5. The cat purrs when it's uncomfortable.
It's possible that this sound is a powerful way for cats to soothe their emotions! Sick and injured cats sometimes purr, which can be attributed to their ability to regulate their mood, relieve pain, and promote the healing of bones and muscles.
6. The cat feels nervous and scared.
A cat may purr when it is nervous or scared. When a cat is in an unfamiliar environment or faces something that makes it nervous, it will purr to relax.
