Your need at least 5 minutes to work in your system if your symptoms disappear after you swallow a pill for it  your carrying a good thing.. Something that can be trained. Harness that moment and build the pain on an on off switch with different words .-SIGNSOFMINDS

If you have ever taken a pill for pain and found the pain disappearing after you swallowed  the pill your turning the pain off with that switch  
also if you can hit yourself in the knee and the pain disappears you can build a switch for that pain to be turned off.