Help!! Our 3 mo old has been fussy and waking up at all hours of the night for the past few weeks. He goes to bed at 8pm and is up at 9:30pm, followed by 11pm, 1am, 2:30am, 3:30am etc. After 3:30am, he is fussy until 6am when he falls asleep again (unless I hold him - then he'll fall asleep no problem). He's not acting hungry, he's just waking himself up and can't soothe himself back to sleep. As soon as I pick him up, he falls asleep. As soon as I put him down, he wakes up immediately and starts crying again. I tried the ssh-pat but it only escalates his cries. I've tried to fall asleep patting him, but he just keeps crying (and I feel terrible). The pacifier helps, but I have to hold it for him -as soon as it falls out, he wakes up crying again. He fights the swaddle so I haven't been swaddling him. But he seems to wake up constantly because of the Moro reflex with his arms. I'm not sure what to do. His daytime naps are sporadic and he's awake MUCH more than he should be. He sleeps for 45 minutes 2 or 3 times a day. We're lucky if he gets one 2-hour nap. He's our 2nd child, so he gets dragged around to a lot of places and activities with our 2-year old son. I assume that's a big problem for his nap schedule - but I don't know how to fix that issue.
Other info: I went back to work a few weeks ago from maternity leave. Could the wakings be a result of that? AND, he appears to be teething. He is drooling really bad and his hands are constantly in his mouth. That seems to be a big problem when swaddling - he wants his hands in his mouth. Lastly, he is fighting the bottle feeding and won't eat all of the bottles that were pumped for him during the day. He SHOULD be hungry but he's not acting like it? He's got a lot of wet diapers, so I know he's getting enough food. It's a little less than usual but not noticeably less. I have been tracking it since birth.
Thank you for any advice!!