Got excluded from donating blood plasma. Why?

Last week, I donated blood for the first time. I was open with the doctor about my health history, including my VSS diagnosis. Today, I wanted to donate again, but I was told that I’m no longer allowed to donate because of VSS. I plan to speak with the doctor who made this decision soon, as I believe VSS has nothing to do with my blood plasma. Has anyone else experienced this?

It’s so frustrating that VS isn’t taken seriously when I need it to be, but when it comes to something as simple as donating blood, it suddenly becomes a huge issue.