If I am not mistaken, there is some form of creatine which might cause such issues. You might be lactose intolerant as well . Take time to build some tolerance.

Each of us are generally built differently. Our resistance might differ. The contents of nitro-tech has always been a little shady. All the funky blends, I got a gut feeling that they are just marketing gimmicks. No offense to the thread starter. Might want to consider regular whey after this.