Based on the context and the answer, generate a question. 

Context: It is after midnight here now , which makes it Monday , which makes it two full weeks since I have felt any significant pain ( as in pain over 3/10 ) in my head . After three years of facing off with 8/10 EVERY NIGHT , I still can not quite believe it . It 's going to take time to adjust .

Answer:

I had successful treatment



Why did my head stop hurting ?