Is it normal i get no extreme feelings towards anything?

I've had motorcycle accident and one of the parts that got hit was my head. Contrary to what I feared back then, I never had any head injury and was able to recover quickly not needing any medical assistance or anything. It was all okay, until days passed and I slowly noticed, my own attitude had changed for some reason. My mom and myself had both noticed it. I became aware of my anxiety, something I never noticed before. I became better and much more able to stay calm and everything else was fine except one: I couldn't feel anything in my deepest anymore. I became too aware of every emotion that I can already control them all, and the worst: I couldn't feel attraction or arousal anymore. Well it's not that worse cause I'm single and I don't mind, but I never thought that this kind of situation would feel very... bland. I kind of like it though. I never get too uncontrollably angry or funny anymore. Just today at school, there was a big fun game going on and everyone is on peak of laughter... I tried to laugh as hard as I can but all that my mind had rendered me is "Why are they enjoying this?" It's weird cause I used to enjoy things like that back then, before the accident. It doesn't feel like me anymore. Plus i forgot how some things feel like that I started questioning about them. It's so weird.