900 people is a fairly small sample size for a study like this, and the data is entirely self-reported. Given that long covid is suspected to be autoimmune-related and the 17.9% that reported worsening symptoms after vaccination, it seems premature to recommend everyone with long covid immediately get the vaccine.

I’m not a medical professional and you probably aren’t either, so we shouldn’t be taking one study and running with the shaky conclusions it draws. Let the scientific community do their work.