I just starting IVing about 2 months ago and I'm just curious to know if anyone can tell me why I don't nod off at all.. Ever! The only time I nodded is the first time I did an oxy like 6 years ago. Ever since that no matter how much H I do I can't get a nod and hardly feel anything besides the rush. I know my tolerance is high but I don't think it's so outrageously high that I can't get messed up. I mean people that use for way longer than me still feel the effects stronger and longer than me. My friend has been IVing for like 5 years now and she does half of what I do and gets more messed up. Could it just be my metabolism? I honestly think I would have to slam like 10 bags to be where I want.. Is that normal for someone who just started IVing? Btw, it took a lot for me to get high from sniffing as well. Sorry if I rambled I just really want an answer so I wanted to be descriptive.