I experience the same thing. At times, when I am having a great time with friends, things that would normally cause me stomach problems do not.I am almost normal at times when I'm having a lot of fun or excitment.My doctor says the probable reason is that my brain is producing more endorphines when I am excited and having a great time. The endorphines are just like morphine, except that they are even more powerful than morphine, and non-addictive. That causes the stomach/digestive process to slow down, and spasms stop. The effect may last for a day or two. When the endorphines wear off, back to IBS! Another factor may be that your mind is too occupied to think of the pain. (The idle mind is the devils playground.)Lots of times when I feel really rotten, I'll go to an amusement park with my friends, and I feel much better. So if you can force yourself to do go out and do things that really excite you, you might make yourself feel better in the process.Supposedly, certain antidepressants (esp. trycyclics) will stimulate the production of endorphines, which is why they often work in controlling IBS and with chronic pain. Also, aerobic exercise for 20 minutes or more also causes endorphines to be produced. So, forcing yourself to do some very low impact aerobic exercises may be of help. (I learned this at a hospital pain program I attended recently.)