Complete change

Has anyone else’s little one completely changed over the last few months? Not to be dramatic but I feel like someone’s snook in during the night and swapped my sweet quiet boy for a little demon child lol 😂 We’ve always joked about my LO being the “perfect baby” because since pretty much straight away he’s sleep through the night, never been poorly, never had sleep regression or teething symptoms, Weened really easy and ate everything, happily plays by himself and doesn’t cry or be clingy. But recently that’s COMPLETELY changed! All of a sudden he screams and cry’s at everything, throws things at me if I say no, has started smacking me and when I say that’s naughty he calls me a “bad boy” 😐 he is constantly pulling at me and never lets be move without a whole breakdown and tantrum. Bedtime doesn’t exist anymore and dinner time seems to have turned into a food fight episode. All jokes aside it’s actually really tiring, do you guys think it’s a late regression or just a tantrum stage? Fingers crossed it passes by quickly!