Well, she may just not find your life that exciting or interesting. not saying that it is not, just that from her point of view it may not be.
For example, i like computers, chess, philisophy, debates, movies, and video games. my mother can not relate to that at all. she is interested in gossip, family, tv soaps, poker and other things.
If my mother starts a conversation with me, i will listen to what she has to say, and comment on it too if i have anything to add. but after that, if i want to keep the conversation going i have to turn the subject to one of my interests. it is simply impossible for me to raise a topic that is in her field of interest. i do try and make the conversation flow, ill pick up on something she said and find a way to link that to something in my interests, but it is hard.
Its hard, here is a person who you love, who gave you life, yet they dont have anything in common with your interests. this is probably more likely to be happening in your case than you may think, children often imitate their parents until a certain age, then do all they can do become different.
with my grandmother i have the same problem, but even more so. we are just too different, she is a right wing racist who would bring back the death penalty for everything, and im the other side of the coin.