Im a Bangkokkian I love to be vegan and love yoga somuch. Living in Bangkok not difficult to find vegan dishes, Bangkok is city of street food so they are many street food stalls made to order, you can ask them any Thai dish just not added any ingredients that come from animals. If you not speak Thai a trick to make them understand that you are vegan after you ordered your food tell them #A-Harn-Jay# is vegan food, so they'll understand what you want or you can add #Mai aow neur Zart# is mean i don't want any meat. Good luck.