I agree with Krissi...post acute
withdrawal syndrome comes after a year. Oxycodone is what I withdrew from, and at 7 weeks, I was still having symptoms. Heck, at 10 months, I still have restless legs sometimes (although the frequency is getting less and less), insomnia, and of course anxiety.
I am also a coffee drinker...if I go without, I get headaches, but that is about it. Be careful about stuff on the internet.