Back pain

My back seized up this weekend. Now I don't know if I am having back pain or my kidney stones are acting up again. No blood in the urine. Luckily, I had an ultrasound scheduled for today, Tuesday. I had a cyst and they are checking to see if its growing. If it is, it's bad news. On a positive not, the Oxycodone actually works for my pain, but it makes me sleepy. And I have trippy dreams. Vicodin doesn't work at all for me.