So someone else admits it too. Hell yes you can have all of those symptoms and more, though of course not everyone does. The psychosomatic factor you mentioned is a legit possibility (as was someone mentioning the potential that the OP just had a virus). I'm just not completely certain it's purely psychological. Nausea can indeed sometimes come from nothing but pure nerves; so it might be purely psychological in source, but regardless of the origin, hot flashes and nausea feel pretty phuckin physical to me, and no amount of assuring me "don't worry- weed is only psychologically addictive" will convince myself that it is in my head (or makes me feel better). That said, w/d from alcohol, tobacco, and coffee are probably more, if not intense, then at least more universal (at least judging by how RARE it is that one seems to suffer w/d symptons from weed), and possibly even more debilitating (longer term and more impact throughout your whole day- weed w/d does generally effect most peoples sleeping and eating anyways the first few days, assuming they were smoking alot). Also, as growers' (un)natural selection continually reinforces the strong strains, while at the same time "weeding out" the least preferred, herb just becomes more and more potent- not only higher %'s of THC, but possibly the thousands of other chemicals in herb as well (many of which are also psychoactive). Agree with everyone else who advised you to quit cigs though. Interesting topic. Thanks for sharing Dave (&WF).