I breathed in dust, and while rinsing my nose out, breathed a bunch of water up into my nose (sinuses?). it is softened well water in ohio with no past issues. within 2 hrs i used nasal spray. should i be concerned about infections or amoebas?

If it is the same water that you use every day to drink, bathe in, shower with, there is no need to worry. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV and Covid vaccines. Wish you good health!