Gross health question....on the number 2?

This is probably nothing , but i have to ask anyways. Two days before the super bowl we got this huge tray of cupcakes from the supermarket. They were decorated for the giants and had LOTS of blue frosting on them. I mean i even had to sc some off. Anywyas when we touched the frosting you could tell it had a LOT of dye in it cause it turned out lips, fingers, and tounges blue. Anyways we ate them for 3 days straight. Now were all noticing that our poop has turned blue. Yeah it was funny for a couple of days but now this is thursday and we haven't eaten them since sunday and we've noticed that it's still blue. I felt like i downed a bottle of dye or somethin. Is there any danger to ingesting too much dye? It's probably nothing, but it's concerning me that it's still blue even a few days later ya know. so im just wondering if we should see a doctor or somethin. I dont' wnat to pay just for the doc to laugh at me ya know so i can just take the laughs on the net if it's nothing