Brief Answer: Yes, most likely withdrawal symptoms. Detailed Answer: Hello, Thanks for posting your question. I have carefully gone through your question, and I understand your problem. Percocet contains oxycodon + Paracetamol, oxycodon is an opioid, and can cause withdrawal effects like the ones you are having. You just need to wait it out, and you will most certainly feel better. Since this is happening only after you wake up, I do not think it to be serious, I presume, this pain/wanting to stretch the muscle gradually wanes off as the day progresses. Hang on, don't lose hope, you will be fine soon. If you are bothered too much by this, then you should consult your local doctor to see what can be done. Hope this answers your question, however, you can write back to me if you have further concerns or doubts. Wishing you all the very best. Regards.

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