Hi Krystal,
Welcome to the NeuroTalk Support Groups.
You'll find lots of information over on the
Traumatic Brain Injury & Post Concussion Syndrome Forum
There are past posts there by the way regarding PCS and flying. You could search the forum using the
Forum Search Feature . Just scroll down and click on TBI forum and search for posts.
The appearance of the bruises sounds concerning. I hope that resolves very fast. Take care of yourself.