I am thinking about applying for admission into Ivy-league colleges as a fibromyalgia suffer.

To answer your question: No one here has the specific details of your case, so it’s impossible to offer a reliable opinion as to whether or not it will be compelling in your quest for Ivy League admission. And this is not the place to share those details.

And you haven’t provided a GPA, and have indicated that you haven’t taken the SAT/ACT. Without those two numbers, additional relevant discussion is difficult if not impossible.