Not too often you are asked by Thai immigration these days, but not unheard of. If they DO ask, it would be beneficial to you if you had a departing ticket (not necessarily a return ticket home). They rely on the airlines to be checking for those things. THAT happens fairly frequently now.

One of the simplest things to try first is diet.

@Cam *******

is on the right track. Might be hard for an Asian, but first try cutting out things high in carbs and sugar like rice, pasta, bread, packaged granola, fruit juices, etc. even whole grain versions for a while. It may not be the cure, but could feel a difference in as little as a few days.

Just a bit of advice before you go too drastic.

Also, she COULD be allergic to something she is eating.

I agree.

Yes, take a 3 day trip (to a close place like KL) on day 58.

Or take a 3 day trip.

The easiest thing to do is book a flight to a nearby place like Kuala Lumpur, which you can cancel for a refund, or eat the cost.

@Jeff ********

they opened the new terminal a few months ago. You take an underground train to reach it

That sounds reasonable for inpatient, worldwide, renewable. If that is affordable for you, I would take it, as they only get more expensive to start as you get older. Most will have options to include or exclude the USA for anything longer than a few weeks.

@George *********

, just Google Thailand visa, and you should get a list of the visas. Also, there is an online website (the name escapes me currently) for certain countries' citizens to apply.

You won't be able to become a Thai citizen. Resident, maybe.

You can get long term resident visas. You need to be over 50, have a job there, have a Thai child, or married to a Thai, to start a long-term visa process going.