The chugging water, peeing, sweating, vomitting up water won't really affect your blood alcohol level - only the passage of time will do so. And it certainly is abnormal to only have the blood alcohol level drop that much in 3 hours. However, there are many factors that can contribute to this. As for as having the blood retested, the way that is done in CA is by preparing an order the judge signs, and then the blood goes to the independent lab. I can't imagine doing such a thing without an attorney. You should call a couple of local DUI attorneys and explain your entire situation to them, and then consider hiring the best one you can afford. Good luck.
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