Every morning I wake up with a really bad stomach ache , sweating , tremors and just generally feeling unwell , I suffer from anxiety which has been a lot lot worse in recent months I am also tapering down a methadone course I am currently on 7ml with no thoughts or even feeling tempted to use again however these bad stomachs were none existent when I was using (had a codeine addiction) so was wondering if there is any long term damage codeine can cause also is there anything you could recommend , the only way I seem to be able to be able to get any relief is if I get in the shower and blast hot water on my stomach area , I am currently taking propranolol , buscopan and Ibuprofen and Imodium