I had back surgery 9/5/17. I was taking the 10/325's originally 1 every 4 hours. After a 3 weeks cut them in half and I went to one 5/325's every 5 hours for a couple of weeks. My body tolerated that fine, going from 10's to 5's. Last week I tried going to 1 every 6 hours and started major anxiety attack, heart rate up, ringing in my ears, etc. I've only been on these darn things 8 weeks. Can someone give me some recommendations of how to wean off these without all these horrible side effects? Thanks for any info.