Sorry if duplication crap online I'm an old veteran. I want to apply for DTV on medical grounds due to heart disease. Have been told I have to fly Bangkok for a doctor's appointment letter and fly back to apply for the visa? My plan is get the visa then visit hospitals for best cost and treatment. I have a family to stay with as I will come and go over a period of treatments. My second question is will a British home doctor letter outlining my condition be OK for the application. Thank you in advance, please no wise cracks as this is a genuine enquiry.

Anyone have advice on supplements you can take into Thailand. Have heart disease and take no prescription drugs but vitamins and amino acids. Have retirement visa, Thai wife etc.....travelling from the UK....constructive knowledge and previous experience appreciated.