Headaches, heartburn...help!

I'm about 2 hours away from the 48hr mark.... and I've had intermittant headaches all day...not too bad, but I've also started having some heartburn... which I cannot stand! I only started getting heartburn when I passed the 130-140lbs weight, so I know when I knock some of the weight off, the heartburn should start going away.... But how in the heck do I have heartburn when I've only been drinking water for the past 2days? It makes me want to grab a piece of toast.

Plus, I'm really really missing eating. I think I can make it through day 3, but Friday and Saturday are my fiance's days off & there's no way I can fast and him not notice....plus we're going to a family reunion and food will be unavoidable. (sigh) Perhaps I should celebrate 3 days tomorrow night for a 1st time newbie and start again on Sunday... that way I'll be able to get in 5days before his next days off!

Is it okay to fast on and off like that?