Sounds like his feelings are misguided into agression- lately I've found Axel doing things that were like he just didn't have enough self-control not to. Today he just picked up a full cup of water and dumped it straight on the floor, for no good reason (twice). And physically he's always drumming his fists on things, himself, other people, together, or just breaking out in various dances and such, it's like he's got the urge and the energy, and it just gets out. Other examples are more destructive- and sometimes purposely defiant. I'm actually amazed Axel hasn't been rough with Eva. Although, Liam and Kaylo are 10 mos older than Axel. I think Liam must feel jealous. I know my mom says I bit my sister until she bit me back. But also, he doesn't know his own strength, he's probably overwhelmed with love and jealousy at the same time- like you know how something's sooo cute you just want to squish it? He has to deal with that feeling- I think it must be tough!
Sorry for rambling. I was just thinking about this.
oh the energy problem...the winter is soo hard. he gets cold or can't even move well when he's bundled up. so he gets crazy inside. i wish there was an indoor playground around here.