In agony of N Fowleri. Reach the brain?

It had rained and my toothbrush felt a bit wet maybe from the raindrops rebounding on it from water falling in the courtyard. So I washed it with RO water, wiped it with cloth and in my stupidity tried to dry it by keeping near an hot electric iron 2-3 inches apart for like 10 minutes or so sometimes holding the bristles like 1 inch apart. I brushed my teeth with toothpaste only and after spitting the mixture out, blew my nose mildly. But after half an hour, I felt something in my nose, I forgot I brushed half an hour ago and blew my nose vigorously & I sensed a strong taste of toothpaste in my mouth. Now, I am very very scared that why did I try to dry my brush with iron as if any N Fowleri was present, it wouldn't be killed drying this way. If during brushing, can the N Fowleri present in the brush reach the upper part of nose or my brain? Or while blowing my nose mildly and after half an hour vigorously make the N Fowleri in mouth reach the brain?