I did the SAME thing last year!! I was going hard all the time and I just wanted to soften up, so I ate about 10 or 12 prunes! (they say to eat 3 or 4, but since nothing works for me for ANTYHING, including Advil for headaches, I thought I'll just go all out) Later on I got such bad pains, diarrhea and all! It didn't last last and no ill effects. You'll be fine.