I am hoping I am a candidate for invisalign. I had braces for 2 yrs several years ago. I stopped wearing my bottom retainer and there has been some shifting. Do you think I would qualify for invisalign.... I will find out friday but I am so anxious to know any opinions

my midline is slightly off and i think that is causing me to shift my jaw to the left and its not comfortable but I do not think I have bite problems.
I have been reading some posts and it seems people with bite problems typically do no get invisalign which makes sense I guess. My question is for those of you who tried to get it why were you accepted or rejected?