Try to eat smaller more frequent meals and see if that helps. An infection could be the reason for color change in urine, my vitamins also change the color... how much water are you drinking? How much caffeine?
I've been drinking lots of water but my urine still has been coming out a bold yellow color. I was diagnosed with a yeast infection due to the pregnancy. :( could that be the cause of the pee color?
Eat very very less and drink lot of fluids ss much you feel required. Drink enough to pee pale yellow or transparent. Hope this helps...