Angel,

no, nothing is wrong with you. Sometimes I think our minds protect us from it at first and it comes back later. It took me over a year to feel it for my mom. Until then, I was in a bubble. I wasn't happy or sad or numb. It's hard to explain. Then one day, while I was watching "Roseann" show after school, her voice reminded me of my mom and it all came rushing in.
Everyone experiences grief different, and it's okay.