If you read the oxycodone withdrawal help on the Substance Abuse thread, it will tell you a lot of people's stories of withdrawal symptoms.
I am clean off oxycodone since December 15th. For me, the first few days were stomach cramps, diarrhea, HORRIBLE restless body when trying to sleep, and feeling just totally blah with NO energy. I 'm told it will return.
Google PAWS (Post Acute Withdrawal Syndrome) which someone else here told me about. It will tell you a LOT! You may not be totally over this for well over a year, but if you hold firm you will get your life back.
I am so happy for you about your baby. For her alone, this is worth it.