Need to correct that.
(1) It's not "3 months after application" ... it's TWO months after APPROVAL.
(2) It's not "back up to 800k prior to next extension" ... its "back up to 800k THREE MONTHS prior to next APPLICATION.
Ask the hospital to arrange a medical extension for you. Then piggyback your retirement extension onto that when you get out.
But why can't you renew it before you go to hospital? You can do it up to a month early in most provinces.
You write with such formal legalese-style conviction. However, you are totally wrong. Neither prostitution, nor soliciting the services of a prostitute, is illegal in Thailand.
1. I think you only need 200k for Thai child? But, yes, (non-seasoned) money is required everywhere now ... except perhaps Ho Chi Min city.
2. The 60-day extension is allowed on the back of any type of visa (and on top of visa exemption too).
My extension got moved to my new passport, in 2019.
Maybe the regulation that you quoted only applies when someone had received a truncated extension. (But there would be no logical reason to do that.)
But if it is pension income that is not taxable in your home country, then your argument doesn't apply. You could end up having to pay tax on your formerly tax-free pension.