Or: All this excitement is making my asthma flare up. I can’t breathe.
Only use that if you actually *have* asthma. You do *not* want to be caught in what could be interpreted as a provable lie. You probably *won’t* feel well after the shooting incident, if from nothing else than the aftereffects of the adrenal dump, so ‘feeling ill’ or ‘not feeling well’ won’t be a lie and will be reasonable. If you have cardiovascular conditions, then sure, use them as a further excuse to demand medical attention. You will also want to have medics check you out under those pretenses to head off any accusations of drug use, drunkenness, etc., etc., that a hostile DA might use against you.