Woke up last Sunday feeling fine,walked to the loo then collapsed,went into shock,tongue swollen to 3 times the size,wife called ambulance 2 paramedics arrived then 3 more not sure what happened but wife said I had 4 drip bags lost count of the injections I had and she is fairly sure my heart stopped. Taken to intensive care for 24 hours had loads of tests etc.Apparently I had a reaction to Voltrol (a pain killer I have taken many times without probs) The paramedics got to me just in time. So I was thinking if I was out wild camping how would I get the ambulance to me. If I dont have a address. When you wild camp take a note of the LAT/LON from your G.P.S and write it down.You never know.