Some amount of blood is normal for girls who had SRS with Chettawut. It's even possible to have blood for the first 6 months, and that would be normal as well, due to Chet's surgery technique.
However, since you had a revision during your stay in Thailand, it certainly complicates things. I would recommend taking pictures of the amount of blood that you normally get on your bed pads and panty pads, as well as a few photos of your surgical area. Email the pictures to Dr Chettawut's office, and ask for advice on what to do. His patient coordinator, Som, will forward them to Chet and get back to you. It might take several days for them to respond though. Just be patient.
If the bleeding is excessive, then yes you might want to consider seeing a local gynecologist. But there is a risk in that as well - Dr Chettawut usually cautions his patients not to see a gynecologist for the first 3 months, because the results from the skin graft technique leave the vagina very delicate. It's possible that a gynecologist could inadvertently cause permanent damage while examining you with a speculum. It's happened before, with Suporn patients as well, and they ended up having to go back to Thailand for a revision.
Carefully weigh the risks of seeing a gynecologist with the risks of not seeing one. But first, contact Chettawut's office for advice.