So, the Dr called me in, which is never a praticularly good sign.
The chest x-rays from my leptospyrosis show an area of dark matter to the left of my chest. Not possible to tell if it is my heart or my lungs so more scans ahoy. I suggested it might be my soul, but the Doc did not laugh, which is also not a hugely encouraging sign.
On the plus side, however, I can keep running in the meanwhile, so that's a good thing.