I understand what you mean!
I myself was a cna for 8 years after becoming an LPN, and let's just say not every one was happy for me. My advice to you is play it cool!
Not everyone will be happy with your accomplishments nevertheless don't flaunt your achievements in their faces. (Not saying that you are or you would)
Personally I don't get the beef between cna's and nurse!
We are all here to do a job that should make it easier for each other!