Your health is probably the single most important thing to consider when retiring abroad. Speak to Tanzing Pacific, they've got you covered.
If you can't find what you are looking for on my site in the Blogs or checklists drop me a message I might be able to help you or point you in the right direction. It is suprising how you become a font of all knowledge when you first have a thought you want to do this, retire abroad, then start researching and double checking things etc sometimes you forget what information you gathered and have read and you may have forgotten to list down.
Don't forget you can purchase, for a price of a cup of coffee (UK coffee not Vietnam's), £3.99, my 32 page Ebook -
Retiring Abroad Everything you need to know - BUY HERE