Overdosing on cocodomol is serious and potentially fatal. I hope you are feeling emotionally better now. Please feel free to write on this forum, if there is anything you would like to discuss. We are here to help.
Since it has been 5 days and you are feeling fine, you probably do not have any physical problem to worry about. The headaches
could be a withdrawal to the codeine
Dr. Saifuddin Kharawala