I have only smoked sativas. so I dont know what an indica feels like, but when I smoke a sativa I feel a head rush and it feels like my head is getting heavier and is imploding. Its almost as if I feel my head filling with thc, and I literally can feel the THC moving around in my head, its so weird. But right after that feeling, I feel really high and then my head feels like it weighs a thousand pounds for the next two hours that I'm high. Is the head rush that feels like THC is entering actually THC entering and attaching to the receptors, or is this just a figment of my imagination? Oh and this is not bad, I kinda like the feeling, I'm just curious.