headache
"I used to take Advil for headaches years ago. I must have taken a lot of it, because I had many headaches.  It worked great at the time. Now I have micro colitis which can be caused from taking to much of this NSAIDS. I really wish Google was around back in the day when I was popping all those Advil! I wouldn't be in the situation I'm in now with my stomach problems!"