I'm on my second year OA visa which expires next July. I'm a Canadian currently covered by the Canada's national health care system, but which I have no idea whether it's acceptable by the Thai authority.
I'm looking for advise to the following 3 options: (1) to seek an extension of my current OA, or (2) to reapply for another OA when I return to Canada in a few months, or (3) to apply for an O visa before I leave Thailand. Thank you all in advance.