I am 71 years old male, 6 foot 1 inch tall, and 140 pounds by weight. I currently take tablet Metformin and Pepcid (Famotidine). Seven days ago, I was preparing to water hanging basket, and some dried mud fell into my nose. I attempted to remove it with a Q tip but could not get it all out. I have been having throbbing frontal and bi-temporal headaches the last four days, but it comes and goes. I have no sinus drainage, no cough, no fever, no stiff neck, and vomiting. Tylenol tablet relieves headaches. Should I worry it is Naegleria fowleri? Please help me.