Next treatment?

Had my bloods at the surgery this morning, like I do every week ready for my weekly chemo, this week is 7/18, and tomorrow is pre assessment clinic with the consultant.  I casually said to the nurse who does my blood "I must ask the consultant what comes next after this chemo, I assume there will be another holding hormone treatment" to which she replied "I don't know about that, but you should definitely find out what is next."  Now I had not even considered that there might not be anything to come, ever since I started this hideous roller coaster ride I have always been having treatment of some sort.  I have always said I will try not to worry all the time they are throwing treatment at me.  Now I am worrying about asking the consultant, but I do need to know what comes next.  Need to try and put it out of my head, but it is a seriously scary thought.