Is there risk I have contracted Naegleria F. From pool?

Question

I went to a baby swimming lesson with my son yesterday, in a small pool like a big hit tube, it had very hot water and you couldn't avoid getting water up your nose all the time because of the babies splashing water. They told me that they use only Ozon for the water and they have an overflow system at the pool. Are these things enough to kill naegleria F. And have the adults and the babies safe from contracting Naegleria? I am afraid about me and my son and today ifeel symptoms that may be due to my anxiety or maybe not but iam very afraid. What are the chances? I got a lot of water got into my nose. Plz help