ok, it's day three of induction and i'm feeling pretty tired and lightheaded. is it too early for me to consider a pottasium supplement? should i give the lightheadedness a few more days?

i'm also a bit concerned about magnesium. i take a multivite and a calcium supplement, and i'm getting about 1100 - 1200 mg of calcium daily, plus whatever i'm getting from cheese.

here's the fitday stats on potassium for the last 2 days (and for breakfast and lunch today):
12/13 - 2099.4mg
12/14 - 1651mg
12/15 - 563.58mg

and magnesium (this doesn't include whatever is included in my multivite. i'm not sure):
12/13 - 215.73mg (70% RDA)
12/14 - 204.98mg (66% RDA)
12/15 - 90.79mg (29% RDA)

oh, and if it matters, i'm averaging about 135oz of h20 a day.
thanks in advance.