"i was prescribed this medicine yesterday. i had been taking norco 10-25 which was no longer working. my guess is the tolerance i had built up. i took it yesterday and it really helped my pain. i have severe pack pain due to narrowing of spine due to herniated disc and osteoarthritis which is in most of my major joints. i had one hip replaced 8 months ago and due for another soon. i took my dose this morning, 50mg every 8 hours and really weird feeling. hoping it goes away because my husband said i was a lot more pleasant to be around yesterday. i was also put on lyrica at bedtime. could this be cause of spacey feeling?"