Hi MomtoL...your story sounds like a repeat of my childhood years. It sure sounds like your grandchild has the symptoms of IBS, and yes you can inherit it from family genes. I was five when my first attack can be remembered. I'm now 51, and I have dealt with this all my life until I was diagnosed with depression in 1996 (life circumstances)and found the med to help with the pain. It will not cure IBS, but will surely help one to be able to function with life better. Good luck with your little one..I know how she feels.