It's easiest to just copy the email I sent;
I was doing ok with the 10htz burst setting until I had a lot of added stress from work, who called a dismissal meeting because of my attendance. This is when the pain levels worsened and I couldn't control them using this program so worked my way back through the others. The tonic programs now don't seem to do much in terms of pain control in comparison, so I didn't stay on those for long. I then gave both the 40htz and the 20htz burst settings a chance by attempting to leave them on for a few days. The 40htz one feels pinchy and irritating within a day so I switched to the 20htz version. This I managed to leave on over 2 days until it became pinchy and annoying. The stabbing pain wasn't being controlled well and the numb feeling I have at the back right side of my head became more tingly and felt a higher degree of numbness and spread over a larger area.
I made the decision to switch back to the 10htz version as it seems to give me the best control that I can get from the programs I have.
It again took a few days to settle and help control some of the higher levels of constant pain, but I now have more sharp stabbing pain and tingling (like pins and needles) at the back of the head, than I had before the added stress from work.
I think maybe another reprogramming might be worth a try, although I'm not sure what you have left to work with, as I now seem to only have one setting now that I can use successfully without causing more aggravation or irritation.