I am new to this site and it is a great source of info--Thank You. This is my first baby. He seems to be hungry about every 2 hours and he is 4 months old. This last week, he will nurse, I feel my letdown, and he is still OK for a few more minutes. But, it seems to me that when he reaches my hind milk, he pulls off and turns red, screams, and arches his back. I don't think it is my letdown because I feel that and he continues to nurse. I think it may be acid reflux which he is on medicine (twice a day) for. Also, it seems to happen during the first part of the day but during night-time feedings he is much better. My nursing position is the same. It's almost as if my hind milk tastes bad. Or it could be the food coming back up. Any ideas would be appreciated. BTW, I have implants under the muscle (saline implant with silicone bag).