Does Suboxon Triggers The Frequency And Severity Of Headaches?

Hi my name is Katie and I had a baby5 months ago I was on subutex and 2months after I was,my doctor said he would keep me on those because suboxon triggers me to use and gives me headaches. But my insurance told Dr that they won t pay for. Them because I m not pregnant anymore! Do u think if I call and explain it to my insurance again that suboxon isn t good for me an subutexs work better then they will cover them I don t know what to do? Please help me figure this out!