I quit smoking, sugar and caffeine, started exercise and eating right..

But I am really bloated!!!  AND I can't sleep through the night because I get up to pee 2 or 3 times.  I feel great about what I am doing for my body but it is discouraging to be into the second week of this and have tighter pants than before. 

By nature I am a sugar junkie and have smoked for almost ten years.  I am 26, 5'8 and weigh 130#, and am for the most part active, but low intensity.  Because of a recurring ob-gyn "problem" I decided I needed to give my body the foundation to fight off infection and disease on its own, and started this kick all at once.  I am eating no sweets, only whole grains, fresh fruits and veggies and also cut out meat for the mean time to reduce acids in my system.  I am walking fast on an incline treadmill 4-5 times/week (which is harder than it should be due to all those cigarettes) and weight lifting 3-4 days/week. 

Aside from being healthier, my goal isn't weight loss but FAT loss as I may be "skinny" but I have undoubtedly too much body fat and not enough muscle.  If anyone out there has feelings or ideas on this or has been there before, please share.  I know I've made a good change, but my belly feels like YUK!

Great start at the lifestyle change.  I recently quit smoking too and it's not easy!  Have you ever heard of the term "skinny fat?"  I first heard it on this site and it means that you may be thin, but have a high percentage of fat on your body compared to muscle.  Your workout routine sounds great to me, but in time you should increase the intensity of your cardio workout.  For me, I wasn't able to noticably breathe easier until after 2-3 months of being smoke-free. I smoked for about 6 years.

I'm not sure exactly why you're bloated. Do you think you're retaining water weight, or even constipated? It's embarrassing but that happened to me just after I quit smoking.  I've read that quitting smoking can decrease your metabolism a bit  and can slow down your GI tract.  I think caffeine may also stimulate the GI tract too.  Just be very careful with your diet.  Don't deprive yourself too much all at once.  When I was into counting calories, I ate 1000-1200 cal a day. After 3 days of that I couldn't take it anymore and ate everything that came across my path! Now I give in just a little whenever I have a craving so I won't binge later.

Don't give up on the weight training.  You won't see results right away, but that's what will give you a sculpted, toned physique, and the cardio will help with fat loss. Good luck!