Hi there Im a 43 year old woman i weigh 84 kgs I took an aver does Monday of approx 14 paracetamol over about 7-8 hours went to a+e they kept me in about 24 hours started me on antidote drips after first drip my face ad neck was extremely swollen so they stopped and injected  me with something like piraton and the swelling went down bloods were ok  next day I went home for the last few days I  had back and leg pains is that normal?
Your back and leg pain is not related to paracetamol overdose.  It can be due to stress though.  I would still recommend you to show to your treating doctor and follow his advice.  You should not take any painkiller as of now, though you can apply diclofenac ointment.