Kimmie, Has your doctor checked out your heart? I haven't heard many people complaining of this. It could be a panic attack that is speeding up your heart rate, but it's important to rule out physical causes before making that assumption. Once you really know the cause, and it turns out to be a combination of anxiety and IBS, then this site can help you with all kinds of approaches to managing both. It can't really help you with other medical conditions, so it's important to find out what's actually happening in your case first.