What’s wrong with popping pain killers, after all they can’t be that bad, you can buy them pretty much anywhere; the supermarket, the newsagent, your local shop, the petrol station. There’s no denying that painkillers are at times invaluable, like those times you had raging toothache, crippling headache, period pains or agonising back pain. Taking some pain killers helped you stay comfortable until you got to see the dentist, the doctor or the osteopath. But what if you were