Please Help Mimzy Get the Heart Care She Needs!

My name is Alex, and I adopted Mimzy as a birthday present for myself last November. So as she isn’t even a year old yet, this came as a bit of a shock to me… Mimzy is a very sweet, playful girl! She loves her pets, LOVES her food and treats and she's very vocal when she wants something. A couple months ago I noticed she wasn’t eating. I’d give her a treat, and she’d spit it out which she NEVER does and I didn’t change anything about her food. Then I started noticing she’d throw up at night and decided to make her an appointment at the vet. They gave her an injection of medication to help, but wanted to do x-rays to make sure nothing else was going on. Well everything as far as her stomach looked fine, but they noticed she has an enlarged heart which can cause blockage, hernias, breathing issues and sudden death. This is where I need help. I have pet insurance, but they will not cover this. I don’t know how long she’s had this issue, but the vet said that it’s caused by genetics. She is eating again (thank g-d) but now I need to get her a screening to see if she needs surgery or if this condition can be managed with medication. Anything you can donate is helpful! Thank you in advance!