My Doctor Has Prescribed Me Oxcodone15mg Take 4 Times Daily

my doctor has prescribed me oxcodone15mg take 4 times daily and morphine 30mg taken twice a day; I had been into my 3rd month taking the morphine. prior to morphine he had me on oxycontin er every 12 hours''. on November 15 my dad was to come in to my home for dinner. I took my medications before leaving to drive the 4 miles to see why he wasn't answering his phone. I was very close to my dad. I found him dead kneeling down on the ground in front of his feeding shed (he's a farm man). from that moment forward I remember nothing until I woke up in ICU at the hospital. the Drs assumed I had taken more medicine when I got home. I do not remember no part of this. I remember finding my father dead and 2 days later I wake up in icu with a suspected overdose