Male 61 Year Old Diabetic. Took Oxycodone 10-325mg For Back

Male 61 year old diabetic. Took Oxycodone 10-325mg for back pain, buldging disc L4-5. at 6:30pm last night & at 12:00am & 6:30am today (Sat). Woke up from a nap at 12:30pm and was feeling like his head was a little num. Now it is not num but has a mild headache. Ate small amt of chicken soup but did not take any more Oxycodone. BP is 133/81 pulse 63.