Help?!

Shelby

So I went to the doctors yesterday for a check up. I had an ultrasound 4 weeks before, and they told me if there was anything bad they would call. Well at my appointment yesterday, my doc told me that my little girl has a cyst on her brain and a spot on her heart. He acted like it was no big deal, and that they normally go away. He continued telling me that it could possibly be bad if the cyst got bigger. He set me up for an ultrasound to recheck next week. I am panicking and I feel like I should have asked more questions while I was there but I had no idea what to ask. As I am doing research on it, I am finding things like Edwards disease and its making me freak out more. Has ANYONE been in this situation? Any advise?