Hey op have been here , well done for reaching out . I was Addicted for around 5 years after taking them for post surgery recovery .
would recommend speaking to the gp for sure mine was very understanding and not in a patronising way or anything or making me feel bad about it . If yours codiene is prescribed medication they should be able to make u a taper plan and just prescribe enough for so many days at a time .
Mine also prescribed a couple of other medicines like anti sickness pills and also sleeping pills although I would be careful with the sleeping pills as they knocked me out and I was like a zombie plus a little addictive in them self’s actually ( that’s me all over tho the same as a pp a sucker for any type of sedative !!)
Cold turkey after the length of time you have been on would be incredibly difficult and also you would be more likely to relapse . A slow taper will mean you gradually adjust to not having the drug in your system and your body will tolerate the lower doses with likely some withdrawal symptoms still but not the full blown affair
Echoing others - expect disturbed sleep , races thoughts , itching , flu type symptoms , upset stomach , nausea , anxiety , increased pain sensitivity BUT please don’t be put off , as I say a gradual taper will seriously lessen / potentially stop all of the above !!
My gp also did a liver function test and all was fine luckily .
Also I think codiene for pain is actually now known to be a pretty poor choice of drug so perhaps getting gp to review that side of things to would be good
Wow war and peace written right there . Hope that helps a bit
Good luck !