Help! Thinking of throwing in the towel!

i'm on day 3 and having a real tough time. i've suffered a migraine since day 1 (which I know is primarily caffeine withdrawal), today I woke up super achy and weak, and honestly, it's gotten to the point where the smell of the lemonade is making me gag. I only had 3 glasses of it yesterday because it was really making me sick. i've been drinking the lax tea morning and night 'cause i can't stomach the SWF, and that's been working fine for me, but i don't know what to do re: the lemonade. i've seriously considered calling it quits even though i know it's supposed to get easier and i'm doing my body a service. has anyone else gotten to a point where they considered throwing in the towel? do you think switching over to limes may help me stomach the lemonade more easily? really need some support before i make up my mind to bail...