This... My mother to me today :"Such a goofy girl! How did I gave birth to such an odd child! Always talking about aliens and such..."My sensor parents usually forget how intuitive I am and that I don't need a lot of details to piece things together. It doesn't matter how many times I display my thinking and perceiving processes.
My best advice:
Don't try to explain anything. Just be you to the best of your ability.
You're going to be an alien to them regardless, you may as well accept you're their weird alien baby and focus on giving and receiving love as opposed to the differences or the lack of understanding.