1200: I start to truly feel cold in my room Despite having the air-con set to 78F, which happens to be uncharacteristic for me. Jaw clenching is important at this point. A bit of giddiness sets in, which I never get on other empathogens.3MMA, or 3-Methylmethamphetamine, can be a synthetic stimulant inside the amphetamine class. It's noted for its p