I am happy for you. Which Robitussin did you use? Ingredients are variable for each of the commercially available Robitussins. For example, as per Wikipedia and Robitussin’s web sites, Robitussin DAC contains codeine, and it is usually only by prescription (I would doubt this is what you took). Robitussin AC is similar to Robitussin DAC without the pseudoephedrine and has a 3.5% alcohol content, while the versions with promethazine have 7% alcohol. Also, some of the other active ingredients (i.e. Chlorpheniramine maleate or even Guaifenesin) may have central nervous system activity with, reduce sensory pain, etc. further alleviating your detoxification. I hope you keep doing well regardless of the possible medical or pharmacological explanation to your great story.