I have my tongue pierced and I was just wondering if?

any one else had the issue of their tongue turning orange. and I don't mean it has an orange tint I mean it turns orange like AFL Crush orange. It's happened since I got it pierced years ago, it don't affect anything really except that I look like I have been sucking on orange candy all the time. I can also brush the orange off by this I mean when I brush my teeth I also brush my tongue and once I am done my tongue is the normal pinkish/reddish but within a few hours it back to orange. I am just wondering why? It's no big deal I am just curious. I will not be taking it out so don't even go there.