Breastfeeding woes

I've hit that point where he is cluster feeding.   Today he's pretty much been eating since 2am and it's 530 pm now!  I think we got 1 hour sleep in there.  He'll fall asleep for like 15 mins then wake up yelling to eat.   Not the worst thing except his thrush is still around.  The night before last was the worst!!  It was so painful.   It's mainly on one side so today I am having him nurse on one side only and pumping the other.  Luckily he's taking a bottle great.  We actually switched to a Dr Brown bottle which he seems to like a lot better.   Steve has offered him a bottle throughout the day so I get a 15 min break.   Once we get the thrush cleared up then I will feel better.   I'm glad he's growing but it sure is tough on me.   They weren't kidding that the first 3 months is hard!!