Pathetic medical aid

I have discovered a lump under my arm which is benign according to discovery I need to be diagnosed with cancer first before they act on removing this lump. They are not taking in consideration the pain I have to endure everyday and the possibilities that will affect my health due to this. I pay every month without fail medical aid but when it's time to get assisted Discovery comes with some many exclusion that are shocking for the rest of my life I have to live with this lump until I die according to discovery