I'm going to ask for a schedule change
Why do you want a schedule change?
10 AM is too early for me! I need a excuse to leave the class early.
It is good to let people know if a time will not work for you. You should not lie incase they find out and wont make an exception in the future.
But I need to make it sound cool! Like possible stomach issues or something!
I think that this is a normal situation and you don't need to lie about it. Just tell them this schedule does not work for you and see what happens.