Fussy Bussy

I'm not quite sure what the deal is but Buster has been very fussy for about the past 24 hrs. I have alternated between thinking it's just teething and possibly another ear infection. He did well for a bit this evening after a long nap, but then was very fussy when it was time to settle down and try and go to sleep. I finally got him sleeping, but even in his sleep he seemed uncomfortable. Luckily, I learned from last night, and gave him some pain reliever before bed tonight. I'm really hoping he doesn't wake up uncomfortable. It's so hard when they're this little and can't just tell you what's up. I'm going to see what tonight brings and if he's still fussy have him checked out tomorrow.