Oh no Laura, I'm very sorry. I have a mild clotting disorder, but it would be the opposite of what Grace has, I have ProteinC deficiency. I would have never found out I had it if my sister, Heathersue hadn't been diagnosed with Antiphospholipid Antibody Syndrome shortly after Sawyer (her son) was born. That too causes her blood to overclot. She was in the hospital for close to two weeks. She takes medication to help control it. While they were testing her for things, they found out she also has ProteinC deficiency and suggested the other family members be tested as well.
I'm glad that you found out there was a problem before anything happened, but I know how worried you must be.