Grumpy 13 month babe

My son has just been over the top lately about everything. He’s been randomly throwing fits when he eats and I have no idea why. But that’s not all, just the past couple days he’s been very whiny, fussy, and having meltdowns and it lasts all day. He just got over this weird nap refusal stage but is still very whiny. Is anyone dealing with this too? I don’t think he’s teathing. He could be idk. Or like a phase? But he’s just been very crazy. Anyone else’s 13 month old the same or is it me? He’s just been so bad lately 😓