I don't think there's anything wrong with them. Generally, I like them. I do have my own nickname problem though. I've been Missi since I was 2 and now I feel I've outgrown the name. I've tried to start going by
Melissa, but it's not catching on very well and I have one friend who flat out refuses to call me anything other than Missi becuase that's how I was introduced to her.