Your splint should not be hurting you. It could be that it is not adjusted correctly. Call the doctor that made it for you and tell them about the pain you are experiencing. If your pain is not your splint and is your tmj I feel for you. The best thing to do is take it one day at a time. there are also medicine that you can take to make the pain less, but will probably make you drowsy. I am sorry you are in so much pain, I wish we did not come with teh territory.