That's never happened to me. Usually when I feel a "high" it's because of blood sugar levels. It could be excessive MSG or the cook may have dropped a glasine package into the WOK.
I've been married to a Thai for 31 years. The only reaction I ever get is sweats and hicups from the "heat".
Naturally this reminds me of a story. While living in Pattaya my wife and I stopped in a local kitchen for some Dom Yam Goong (shrimp soup). I saw the cooks peeking around the corner waiting for a reaction since they saw I was a phalang and thought they'd have a laugh. I took a sip and they had really loaded it up. Having been raised of various spicy foods, I didn't want to give them any satisfaction. I asked for some extra pepper and ate it all without a blink. This completely spoiled their little joke. It didn't take long for the sweats to start and the hicups started once outside.
