Can I apply for a new tourist visa in Thailand after switching from a non-B visa, and what about entering via the visa exemption scheme?

When is your visa expire? Because my brother have a problem too and he wants to fly to malaysia for a border bounce. Dont know what to do.

There's nothing stopping you trying for either Visa Exempt or applying for another tourist visa at a nearby consulate.

With your history I guess you can expect to be questioned by the Immigration Officer at the airport or border crossing. Not that you've done anything wrong because you've had appropriate visas but they've got a job to do. Have the 3 proofs ready (accomodation, 20kthb and onward ticket)

If you have a sponsor ( boyfriend/girlfriend or whatever) then that would be helpful in both the embassy when applying for a visa or if you get questioned at immigration.

Good luck, let us know how you get on. ( Almost nobody reports back their results, a few, but not many)

Yes you can enter on the 30 day visa exempt stamp and you can also extend it for 30 days at a cost of ฿1,900 at your local immigration office….

yes you can apply for a tourist visa if in Thailand the easiest one to get in the general vicinity of SEAsia is the 60 day SETV which can be extended for 30 days fir ฿1,900 at your local immigration office for a total of 90 days in country….

for the 30 day visa exempt stamp you can do a border bounce to Malaysia,

There is no official limit on the amount of Air Arrivals one can do, and you can extend every one at your local immigration office for ฿1,900. A caveat on this is that eventually you will be questioned by an overzealous immigration officer