Definitely lay off the soda. I drank a ton of soda when I was younger (working in pizzerias for 10-12 hours a day). I probably drank 6-8 cans a day. Soda is like battery acid on your insides. I have had stomach problems all the way through since. I LOVE the taste of regular soda and have just had to give it up mostly because for me it absolutely causes weight gain (and big dentist bills). I drink a diet soda or 2 every couple of days and ever couple of weeks I'll have a regular soda. Coke Zero is great. Also, Diet Dr Pepper, Diet Mountain Dew, Diet Sunkist, Diet A&W and of course Diet Sprite! When we moved into our new place I got a Poland Spring cooler. I drink more water than ever and feel better for it. Good luck getting that caffeinated, sugary monkey off your back!