Going on vacation. . .do I need to feed my betta?

I'm going to be in the Bahamas for a week, but my betta is bloated. I fasted him and fed him a pea today, but I'm not sure if I should leave a feeder block in his tank or not. His bloat is pretty severe, he's been like this for a few weeks now, but this is the first chance I got to try the pea trick. I also plan on trying an epsom salt bath when I get home, if he's not better. But regardless, what should I do?