Anyone's 7 month old on hunger strike?

Katie
My little guy spent the last two weeks ravenous and eating any solids and bottles I would give him...11-12oz of solids, 28oz of formula. BUT the last couple of days, he's less interested in bottles...and seems to be getting too full and spitting up (big ones) more often. 
I'm feeding him on a new schedule to get him ready for moving up to an older daycare class. So I'm thinking maybe it's just the shift in schedule.... anyone else dealing with this???  Today he only took 8oz of food and 20ish oz of formula.