Hey - even though you said you're no longer concerned about your tongue, I thought I'd answer anyway.
I've read that the tongue at times will go pink for a while, and then will go white again. The tongue being white means you are cleansing even though you had few to no other symptoms. It's a good thing - to me it reminds me that my body is making use of the time. Yet my tongue was pink for several days at the end of my fast and by no means do I believe I'm completely cleaned and healed up. I'm certainly healthier than the average joe I see by far, but I'm quite a bit less healthy than the "health nut" type that I strive to be more like. I still have some signs of less than perfect functioning but my tongue was white.
So even if it gets more white, go ahead and break, now gives you some time to prepare your digestion. You did a great thing for your body, adding health and longevity. We'll see you again in a few months. Maybe I'll be on with you again - I'm planning another one in 3 months.. probably just a 14 day-er :-)