The recent podcast answered a question about upper body petechiae associated with heavy lifting. I have seen this on the stronger members of the gym. Would you consider these are a consequence of the valsalva obstructing venous return? If the petechiae are extensive on the face might they not also be in the brain? Might it be a reasonable thing to perform fundoscopy to investigate this possibility.
I don’t know.
I also don’t know what you’d do with whatever information you found on fundoscopy, either.