Medical vs travel insurance question for maximum 5 month stay.

I have just secured a 5 year DTV and arrive in Thailand next week. I plan on staying around 4-5 months before heading back to Europe for 2-4 weeks. Then back to Thailand and repeat this process.

Question, can I get travel insurance for the trip of 5 months, then do this again before I return for another 5 months or so stay, or do I need to purchase 12 months medical insurance.

I’m from the UK.

Thanks

Hi, I am in the process of getting my Non O A visa in the U.K. Are there any members in the group who did this recently too, and if so which health insurance company did you use to sign your health insurance certificate you need to upload on the website? Thanks