*This is not a test n go related question

Hello, I've been in Thailand for 4months and about to fly out of Thailand next week and will have to do a PCR test. I know I won't be allowed on board if I test positive at a clinic.

However, my question is if the test comes out positive, do I have to admit myself to a hospital or can I monitor my own symptoms/self isolate? Do clinics immediately report the positive cases to government?

Thanks