I weigh about 140 pounds, and am afraid I may have taken a lethal overdose. I swallowed between 14000 and 20000 mgs of acetaminophen, a whole 20 pill bottle of meclizine, and various other random things. I took them about 48 hours ago, and the only thing wrong with me is my right ear seems completely stopped up, I feel nauseous, and my chest hurts.