There is absolutely no reason to assume that you're not, either.

If this is how you react when someone expresses concern for your welfare, I can't imagine how you're going to react when I tell you that no one did anything out of line.

IF you had submitted a claim  for the burn through your workers compensation policy, or your self-insured health insurance, and your employer had taken the information they got from that claim and discussed it with someone who did not have a need to know, that might have been a problem. As it is, this was someone who was concerned that maybe someone was in a bad situation and asked about it.