Did you have a UACR?
I bet the many over 70 year Olds here have mild CKD. Google says 35 million adults in the U.S. have CKD, many don't even realize it. I would not let it change plans to come to Thailand. Just try to stay healthy with diet, exercise, little or no booze and get frequent tests. If it progresses, a person can return to their home country.
As far as insurance, for sure it will affect it here. Most likely no coverage for any current or future issues. If in fact, they give you a policy at all.