Yeah, it is really hard for me to believe that you could get w/d this fast and especially since you weren't doing just oxy but weaker hydrocodone. The w/d if you would have it would be a lot weaker, not to the point of throwing up. Maybe if you were doing heroin 7 days in a row I could believe it, but not really with these drugs and dosages and breaks in b/w dosing days. Unless you are some freak of nature, which is not likely.
I think part of you feeling sick might be the APAP. Your stomach might be sensitive to it and taking it this regularly might be making it upset or your liver upset. Not saying this is 100% true, but just a possibility to throw out there. It might be part of why you are feeling shitty.
The binge might be catching up with you, that is a pretty sensible guess. Your body might just be getting weak from taking the drugs. You might not be eating enough or taking care of your body properly.
Also, people develop sensitivities to drugs after they have been taking them for a while. I am not saying it is what you have, but maybe something to think about. Someone can be taking hydro for weeks everyday and be fine and then one day they take it and feel sick. It can happen with all opiates as far as I know. But I don't really think that's the case with you as you are not showing symptoms of an allergy, like swelling or rash. So I dunno.
I think that what you are going through is a combination of different things. Take a break. Preferably you should stop using this stuff now as it seems that you have been using it quite a lot for a beginner and an addiction to opiates can really suck you in quick. But if you take a break and then come back and you are still feeling sick from it then your body just stopped agreeing with hydro or oxy. Most likely after the break you will be fine, your body will heal and you will be able to enjoy your drugs.
But really, you seem to be on a road to dependancy. I know you probably think you will never get addicted cuz you have a strong will power. No addict starts out wanting to be an addict. No one starts saying "oh yeah, I'm gonna get addicted to opiates". Everyone starts out saying that they will never get addicted and then a while later they are spending all their money on it.
Just be careful. I know you don't want to hear this shit, but if it will make you more careful with your use, that's all I want. Don't make the same mistakes that we did. After you use for sometime, willpower stops working. It's too easy for anyone to fall into addiction. Just be careful. Never think that it won't happen to you but instead make it not happen to you.