A.S.
i'd eliminate the pacifier completely, and nurse him to sleep for naps and bedtime and during the night (are you nursing him several times a night? cosleeping? that can help a lot, and especially after you go back to work, to make up for not nursing as much during the day). you could also try nursing him lying down, and in a quiet room. a session with a craniosacral therapist or cranial osteopath could help, since he may be uncomfortable in certain positions due to restrictions in his craniosacral system or muscles. also it might help to keep offering the same breast for a few feedings, especially if he's having greenish poop at all. and he may be just fine, just a superefficient nurser who didn't gain weight for 3 weeks due to illness. i really would cut out the pacifier though. it's wonderful that you can come home and nurse him during your workday.