My 10 mo old (corrected age 8.5 mo) has started pulling off while nursing, upset - seeming more mad or frustrated than sad - whines a bit, arches back, then latches back on without a fuss. I don't know what it is. It's not a super fast flow thing I don't think? I just can't figure it out. Ideas anyone? He co-sleeps in a sidecar, and I've posted recently about him starting to wake up every 2 hrs for the past 2-2.5 months. Thanks for any ideas!