Anyone's LO Act Weird When You Went Back To Work?

I went back to work a couple days ago and DH is staying home with DS for a few weeks.  DS has been extra fussy and not napping or sleeping well since a day or two before I went back.  I was thinking he could probably sense I was sad and nervous before going back.  But for the past couple days with DH, he has been fussy, spitting up more and his eating habits have been a bit off.  He also hasn't been napping well at all.  We definitely had the morning nap down when I was at home...1.5 hours.  Then the afternoon nap was always at least 45 min.  Now, he won't nap well at all for DH.  Has anyone experienced this with daycare or leaving DC with DH? I was home for 5 months, so it would make sense that I was all he knew and he may be a little confused.  he doesn't seem sick at all.