I have always considered myself to have a low V threshold, & would be more likely to get sick than most people in any situation, but then I saw some threads posted on this site that describe people getting sick simply from lack of sleep. I have been sleep deprived on many occasions, in fact once I was so tired that I was hallucinating, but I have never felt the slightest bit like Vting, so I`m wondering if that means that my stomach is stronger than I gave it credit for.