I to am and was a diet coke drinker. I can do the caffiene free but the taste ain't the same. I will do diet sprite, root beer, squirt, etc. I have also found that our Save a Lot store has diet cola, lemonlime, rootbeer and dr pepper type sodas with sucralose in them.

I still do caffiene but only limited, I never had headaches or anything from it.

dave