So my daughter at almost 7 months still can’t handle any nipple but the slow flow. Every time we’ve tried to move her to even the stage 2 nipple it’s like she chokes on it or it upsets her stomach so much that she pukes her bottle after finishing it too fast. Is this normal? Like it doesn’t mean she has a feeding issue? Because I’m thinking about bottles of the future and like sippy cups, how will she ever drink from them? Should I try to move her up again? At this point she should be able to handle the fast flow, that’s why I’m concerned.