Following the extraordinary Paralympics just down the road from me and the extraordinary contribution of the armed services around the Park which I and my daughters noticed today, I would urge anyone who's bothered to tune in here to re-read the third book of the Pardes End tetrology which deals with PTSD in gruelling and authentic detail, written by an author who lived it and survived.
You too may fly a flag even without significant bits of your body being all present and correct, if you bother Yes it is OK to say that.