I know you guys are sick of me asking about water as I have asked in two other threads

.. BUT.. before I call the doctor I just want to ask again and maybe make myself more clear, as I am self pay in all of this and I would rather not go if its not needed.
Drinking..
I can do a sip like every 3 mins, 4 mins with little discomfort but if I drink 2 or 3 sips in a row or within a min I get major cramping. What is normally here? How can I get in all the water I need when I can only sip a baby amount every 5 mins..
I know I am not getting enough water in as im lightheaded.. sometimes blurry vision.
Eating..
I havent been that good on eatting as I am not hungry at all so I have to force myself.. but I have some pains after I have eatten a few bites.. it almost feels like I have taken a laxative and my tummy feels all yucky, its not pain as in with drinking but its not comfortable at all. Is this normal?
Walking..
I am 3 weeks out today .. have been home for 2 weeks now and I am wondering how much walking you guys were doing at this point. I still have a lot of pain when I walk.. gah I sound like a baby lol. But I am trying to get a feel as to where I should be.
Other then that I am ok.. I am down 32 lbs in 3 weeks and I havent really done much of anything.. I just need to improve on water intake.. protein and walking. Any advice or input will be great!
Thank guys for always being here to answer

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http://www.youtube.com/user/AprilDawn77
April, 30 years old in Palm City Florida
GBP Date - July17th 2006
Onderland on June 15th 07
Upper body contouring Sept 4th 07 (5lbs of skin removed) by Dr. Giles ( WONDERFUL )
MARRIED June 29th 2008!
Lower body lift -July 1st 08 (12 lbs removed) by Dr. Giles
347/
155/150/ 5'5"
Start/current/goal
192
lbs gone forever