Are periods important?

Alice
I got the implanon inserted over a year ago and I haven't had a period since. For a while it was awesome as I used to have really painful periods. Lately I've started to miss having periods and I even miss the cramps. I wonder if anyone else has gone through something like this? 
I used to be unable to move from pain and cry for hours but now I feel like it's a cathartic experience that I need to feel normal. Like I'm carrying around something that I should have gotten rid of? It's very strange and hard to explain, does any one get me? 
Is having a period emotionally important?