Am I an asshole for getting the covid vaccine behind my parents' back?

Anonymous
Preface to say I am 26 and I think I can make my own medical decisions, but I still live under my parents' roof for the most part.

Long story short, my parents are extremely anti covid vaxx (due to there not being enough long term data on the safety of the mRNA shots) so they spent the last year trying to convince me not to get it. My dad went as far as to say he will end his life or kick me out if I get the vaccine. I agreed because I was afraid of causing any division in my family, but not because I had the same opinion as them. So I continued masking and avoiding crowded places while my brother partied at bars with his friends. He inevitably ended up catching covid and spreading it to the rest of the family. While they have all thankfully recovered, they still can't taste or smell very well.

During this timeframe, I escaped to my boyfriend's place to avoid getting exposed to covid. I also took the opportunity to get my first covid vaccine while being away from my parents. Now that they want me to move back home, I'm terrified of what they might to if they found out I got the vaccine. After telling my sister about my secret, I feel extremely guilty for it and regret my decision. Am I in the wrong for doing what I did and should I tell my parents?
Am I an asshole for getting the covid vaccine behind my parents' back?
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