Hey Nick!

I've been thinking about you and thought I'd pop in to see how you were going! It's always a tricky one when your tot starts displaying different behaviour and you don't know what it means! I'm not really sure what's happening with Eric but is he drinking so much that he is too full to eat? The only other thing I can think of is if he is still teething, it may hurt for him to chew food so he may find drinking more soothing on his gums but if he's anything like my son was, he may be guzzling too much drink and ends up bringing it all up. Monitor the number of wet nappies he's having each day too as a decrease in these may be a sign of dehydration. If it continues, take him to the docs and see what they think. As for the pj's, go to your local op shop and see if you can pick up some second hand t-shirts or long sleeve tops that he could wear if his pj tops get too wet.
I hope it's nothing serious and I still think you're doing a fantastic job!

I don't have kids so I am not an expert....but could it have to do with his teething....I nannied for 4 years and the little ones used to do this when they were teething..

Nick, is this the first time he is using that bottle? Perhaps he has a sore throat and it hurts to swallow? If it keeps happening get it checked out. Its probably nothing but see what the doc thinks.