I took Oxycodone and mixed it with alcohol two months ago. I did not drink a lot but ended up with the worst panic attack. I did not go to the hospital. A week later, everything was fine, but I had some stressful events in my life. Now, I am experiencing anxiety, and it is not controllable. A lot of overthinking and I am wondering if Oxycodone could be the one to blame. I have had anxiety way before, and it just went away. But, now it is occurring again. Could Oxycodone affect my brain terribly? I had a blood test a month ago, and everything was normal.