@Randy *******
do you have health insurance in your home country? If you do, most insurers will pay for overseas emergency claims. Some will even pay for planned* treatments - but you'll have to read your clauses very thoroughly. You are advised to buy something cheap in Thailand to cover the unexpected and unforeseen health issues.
Alternatively, you can also decide if you'd wanna buy health insurance in Thailand to replace the one in your home country but you'll have to jump through hoops if you have existing medical conditions.
Hope this helps. Nothing is easy but it's kinda fun exploring and manoeuvering through all the possibilities.