You're doing well if you're on the 6th day. The withdrawal symptoms should start to subside soon.
I have quit numerous meds cold turkey and it usually takes about a week, week and a half, before it gets better.
I'm assuming normal Tylenol isn't doing anything to help the pain? Maybe your doc can prescribe some Ibuprofen that will help you get over the rough spot with the headaches.
I'm rooting for you!!!!
Courage is fear that has said its prayers.
Dorothy Bernard