How can I manifest perfect health when my 3D keeps showing illness and my mind keeps imagining negative outcomes?

I have a constant weird feeling on the left side of my throat that keeps causing pain and irritation. Because the pain keeps coming, I find it difficult to stay focused on my desired end of having perfect health. I keep looking at the 3D and the current symptoms make my mind imagine negative outcomes and diseases.

I do not know how to stop focusing on what I am experiencing in the 3D or how to maintain my desired story when the physical sensation keeps reminding me of the current situation. I want to know how I can manifest a new story of perfect health without constantly being pulled back into the current 3D.