My three month old always spit up a bit after feeds, which was not a problem. But in the last few weeks she has gotten really active and excitable and is spitting up loads- even up to 2 hours after feeds. I am having to change her clothes 5 or 6 times a day. She is not distressed, the opposite in fact. But the skin on her neck is getting irritated on her neck from damp bibs. And the laundry is piling up very rapidly. Any advice?