2 whole days without Soda, aka Coke, aka Pop, aka Liquid Crack

I've been a huge Soda drinker my whole life.  I think I was born with a Mountain Dew in my hand (which I'm sure was rather painful for my mom).  Before my dad got diabetes, Dr. Pepper and Mountain Dew were my drugs of choice.  I drank them religiously.  At my highest point, I drank around 8 cans or so of Mountain Dew every single day.  Once my dad got Diabetes, I got the ultimate wake up call because I realized I'd almost certainly inherit Diabetes.  I stopped drinking sugary sodas and switched to Diet sodas.  It was a huge adjustment at first.  Diet Mountain Dew tasted like antifreeze to me and Diet Coke had the worst taste.  I eventually discovered Diet Dr. Pepper and fell in love.  I drank an ungodly amount of Diet Dr. Pepper every day.  About a month and a half ago, I decided to cut back to one or two a day, and now I'm giving it up cold turkey.  It's been two days since I've had a Diet Dr. Pepper and it's been rough.  I've had an awful headache for the last two days.