Cathy, I was a hard-core coke drinker until I finally linked drinking cokes to having diarrhea and cramping and unrelieved gas. Then, boy, I dropped them like a hot potato! I also felt a lot better. Even after getting the old gall bladder out, I was still touch-and-go with being able to tolerate them, so I just quit trying.
To "get off" any food item is a process that, I think, takes years (at least that's been the case with me). So, while I found it pretty easy to drop most of my caffeine intake when I realized it made me sick, I would still have times when I would want one so bad, I'd drink it even if it made me sick. Eventually, though, I got used to being well and became unaccustomed to being sick--which made it even worse when I did get sick. So the tradeoff between coke pleasure now and diarrhea all day tomorrow became less and less worth it. Also, the longer you are "off" something, the less appealing it becomes. So my occasional coke drinks became farther and farther apart until now--4 or 5 years later--I don't even think about having a regular coke. The most I've done with a regular coke for a year is take a sip of my husband's in order to swallow a pill or wet my throat enough to quit coughing. And even that sip doesn't taste good anymore.
If you're like me, you think the taste of caffeine-free coke is disgusting. Let me tell you about my coke alternative that's better than any coke on the market and caffeine-free to boot: Stewart's black cherry fountain sodas (they also come in grape, cream soda, orange creme, lime and root beer that I know about--diet as well as non-diet). This drink will put to shame Cherry Coke; it will render it completely undrinkable to your palate due to it's pitifully inadequate cherry flavoring. Stewart's colas are the absolute best! They're not cheap--I pay around $3.50 for 4 bottles--and they're not always easy to find--I find them at Harris Teeter and Fresh Market and other higher-end grocery stores--but they are, like I said, far superior to other flavored sodas and caffeine-free. They are also very low in carbonation--especially compared to a canned Coke--and have never bothered me on that account. They are absolutely the only coke-like substance that I can and will drink. Although, actually, I have been off cokes and off sugar for so long now, that I have stopped craving even them--except maybe some in the summertime when it's hot.
Try replacing your morning coke with a Stewart's and see if getting rid of the carbonation and caffeine make you feel any better. Eventually you'll get to where you never want a regular coke again and wonder what made it taste so good in the first place. Of course the price will keep you from overdosing on the Stweart's, lol.