Every hour waking was discomfort for us hun. It might be something like teeth that you can't see yet? Or as Lauren said, it may be developmental? It might be worth holding those A's as they're perfectly reasonable for his age and seeing if it settles?
As Lauren also said, those wonder weeks can upset things. I didn't necessarily believe/know about them until I read up about it after hearing about it on here and they described my LO to a T when something funny was going on.
Back patting usually works for us too, unless she is frustrated she can't get back to sleep.
Fx it all settles down soon. If it is ww, developmental or teeth, it usually goes away after 3-4 days here. If not, then maybe we'll have to revisit your easy. What do you think?? ((Hugs))