Rushing with an embarrassing disorder-- advice

I'm a freshman this year and interested in rushing a sorority. I'm a really sweet girl with a good personality and a lot of instagram followers. However, I do have a disorder that is rather embarrassing. I was born with a loose sphincter that that has caused me suffering and hardship for years. Doctors are nervous about operating on it for fear of damaging it more. Sometimes living with this disorder is really challenging, as I cannot control what comes out all the time. I am nervous about the rush process and having an embarrassing accident at the wrong time. I am also worried about greek life possibly making my condition worse. I want to ask anonymously for advice because I don't want people to judge me for it. Like I said, I have a lot of instagram followers and people think I'm really cool.