I started taking over the counter pain killers such as co-codamol and Nurofen plus that both contain codeine, I took them for head aches but since my dad passed away I gradually took more I’m now addicted and take around 20 tablets before bed just so I can sleep I don’t take them in the day only night time when I don’t take them I can’t sleep I’m sweating all night wake up with migraines, how do i stop using them and be able to sleep without depending on tablets?