My LO is just now 3 months old. A few weeks ago she started fussing during daytime feedings, arching her back and ripping herself off the breast. We started doing more feedings lying down and that seemed to help. Now she's even fussy during these feedings and the last few days has been waking up constantly during the night to nurse ALOT. Sometimes she'll go an hour and a half, other times she's awake 30 minutes later wanting to nurse again. Nighttime feedings are fuss free. She has 2-4 bms a day and too many wet diapers to count (alot), so I know she's getting what she needs. She's still gaining weight and a happy active little girl. After reading some posts I've considered heavy let-down, nursing strike, growth spurt....but she was such a good night sleeper before this!! Any ideas would be very helpful.