Susie - I am a Diet Dr Pepper addict myself - was a Diet Coke addict for many, many years. About 6 months ago I had to give up Diet Soda for 2 weeks because I was having stomach problems. I switched to Snapple Diet Lemon Ice Tea or Arizona Diet Lemon Ice Tea for those 2 weeks because I had to work and could not afford to have headaches. With the Ice Tea I was able to do it and found I wasn't wanting as much Diet Ice Tea as I would have with the Diet Dr Pepper. I know I will have to give up the soda when I get sleeved as well. Try the Diet Ice Tea as a replacement for right now... hope this helps