My 5 week old is very fussy during and after feedings. Our pediatrician said it may be reflux related. I nurse both sides and she falls asleep. 20 mins later she is back up crying again. We have wet and pooped diapers. I keep her elevated after feeding, a tight swaddle, or kangarooing her but nothing seems to soothe her. I'm not getting much sleep and I don't know what I'm doing wrong. Please help!