planning a scan

I know that I'm due. My kidneys are on a 6month watch. I feel like I might be the one person who has remembered this. 

I'm having to have a big think about this one. I waited 'too long' last time but happily all was well. As well as it gets.

Now I have to think about what is worth me doing to get the next scan. What will it cost, where will I go? I don't know what my insurance will say. The last one felt like a bit of a once in a life time treat. 

Maybe not. Maybe I pay enough. Maybe.

What I do now is that it's playing on my mind. What is that cancer up to? 

Is it dormant, is it slow, should I get treatment? 

Questions with no answers. They are the most frustrating ones.