Anyone else's baby fussier now?

My baby has been such an easy baby. He is usually happy about most things and very chill.

Ever since he got his shots last Tuesday he has been super fussy. I don't think it's still the shots but could it be teething or a growth spurt?

He is getting overtired super quickly now. He was on 3 or 2 naps a day but his awake windows (used to be 2.5- 3) are short now or he gets over tired so he is taking 4 naps. His first wake window he can't even make it to 2 hours without becoming super overtired and then is fighting every nap.

He also isn't eating as much it doesn't seem like and whines/ fusses a lot more now. Lately he hasn't been content unless he is being distracted or held when used to I could put him on his play mat and he would play with his toys for awhile.

Our whole schedule has been thrown off, he isn't in a leap and he just went to the doctor so he doesn't have an ear infection or anything.

Is anyone else's baby acting different? What happened to my previously happy baby?