Last night I took maybe 15 mg of 2cb intranasaly after having 7 beers. I had a great time but a few hours later my each side of my waist were in agony, possibly where my kidneys are. The pain was unbearable and I almost cried, it felt like what I’d imagine k cramps are, although I hadn’t taken any (have used lots of k in the past but had no health issues other than extreme tolerance). I hadn’t had much water to drink and also hadn’t eaten in 12 hours. Would these factors be the problem or could it be something more sinister. This morning I was still in mild discomfort around my belly and waist but it has subsided now. This has never happened to me and I’m very experienced at using 2cb.