Emergency warning signs: what belongs in the 'stop and get help now' bucket?

This is a good public-service thread and your list is reasonable. Two refinements. First: for the allergic-reaction signs, it's the combination and progression that matters most — throat tightness or trouble breathing alongside hives or swelling is the anaphylaxis picture, and that's a call-emergency-services situation, not a wait-and-see one. Second: the neuro cluster you listed (one-sided weakness, slurred speech, sudden severe 'worst ever' headache) is time-critical for reasons unrelated to any peptide, so it belongs in the same bucket.

The meta-point I'd want every reader to absorb: if you're asking 'is this an emergency?', the safest assumption for the scary symptoms is yes, because the cost of being wrong is asymmetric.

Pinning a link to this from the category description. To reinforce it: replies on threads like this must not turn into 'here's how to manage X at home.' If a post describes emergency signs, the only responsible reply is 'contact emergency services / a clinician.' We'll remove anything that reads as talking someone out of getting help.

The 'asymmetric cost of being wrong' framing is what finally made this click for me. Cheap to over-react to a false alarm, catastrophic to under-react to a real one. Thanks for putting the list somewhere findable.