What are the options for applying for a DTV Visa in Thailand, especially when retired and without an income?

The user is looking to transition from a student visa to a DTV visa, meeting the financial requirements due to savings, despite being under 50 and without an income or business. They inquire about options for acquiring a DTV, including the possibility of using medical appointments for a long-term visa. Comments suggest that a formal treatment plan may be necessary for a medical-based DTV application, while alternatives like applying through Muay Thai are mentioned as cost-effective options. Additionally, it's advised to apply from Vietnam.