So what's the proper way of changing the teat size?
The last few days, DS (12 weeks) has been squirming and grunting while eating. He won't let go of the teat when I try to take it out, but looks like he's struggling. Could it be a sign that he's getting frustrated by the teat flow? At the 2-month mark, I changed the teat to level 2 (designed for 2months+), but after a couple of days, DS started fighting the bottle. I assumed it was the teat, so changed back to level 1. Since then I've tried a couple of times again, but no luck. After the first couple of sips, he spits it out and refuses to take the bottle.
With the level 2, he doesn't seem to be drowning, nor does he have more spit ups, but he does seem like he's trying to catch up to the milk flow, and getting frustrated/tired at the faster flow rate. How long should I keep trying with level 2? If he keeps rejecting the bottle, should I persist? When he's willing and hungry, he only takes about 10 min to finish 3-4oz with the current level 1 teat, but last few times, he's started squirming and grunting, so I wonder if he's starting to get frustrated with the slow flow.
Please help!