How long were you in Thailand? It for just a visit and have lived here for years it looks like What exited me
I had Ascaris Roundworms. Very common here.
One of mine was 13 inches. They like to live in the BM in the intestines and colon so they get stained.
Their larve like to incubate in the lungs. I also have a pic of one of mine click on my username and go to page 1 and look for my photos