Last year, 21-year-old Gavin Finch went from living a healthy lifestyle to needing dialysis three times a week just to stay alive after suffering from kidney failure.In that time, his girlfriend, Ally Braymer, turned to social media with the hopes of finding someone who could donate a kidney to Finch."I made the tweet. I put our backstory on so people would know a little more about us," Braymer said. "And then, after I did that, I messaged a bunch of local places."Lindsey Edwards saw Braymer's tweet and decided to step up."I was flipping through Twitter, and Ally had tweeted about it, and she had just put it out there, ‘Hey, this is what’s going on with Gavin, we are looking for a donor. He has A-positive blood type,'" Edwards said. "And it’s funny, I was like, ‘I’m A-positive, I should give him a call.'"Edwards went through all the testing and eventually found out she was a match for Finch. In November, the transplant the done, all thanks to one tweet."I didn’t know anyone in Gavin or Ally’s families, and so it literally, every step of the way just worked out perfectly," Edwards said.