Is a lost in appatite, increase in tireness a result from switching baby tooth?

Hi!

Next week our puppy turns 4 months and she already lost 2 teeth (almost light at the end of the biting tunnel) but since newyear she doesn't eat that much anymore or is super hyped to eat. The mornings are difficulter, but the afternoon and evening she eats a bit easier but also in some cases not everything.

But could maybe the pain of changing teeth be the cause of this?

Of course its always a possibility that she sleeps easier with the days because she settles more maybe? Or a dog can have days that they don't eat much sure but it's kinda strange that it's just suddenly you know? She still plays and is her good ol' self but yeah it's a bit concerning. Example from this morning normally i take her to the potty, give her food, play and train, walk and then she goes back to sleep while i go to work. Now she skipped everything and went to sleep from the crate directly to the basket in the kitchen

Also i hope im not the only one that have a mild panic moment when my pup doesn't do something she always do at a specifik moment? Like if she doesn't took a dump in the morning that i instantly think "oh crap(pun intended) ma baby is sick"