Reply To: Day 18 cold turkey from codeine and starting to feel like myself June 21, 2023 at 9:49 am #35433 warby99Participant hi Wynter, im on day 15, its strange as it was easing last week but the past 2/3 days have been shocking. feel so sick, my stomach is turning and worry feeling in my stomach, waking up anxious too! i thought all this was behind me 🙁