With pam disease, is it possible to feel better after any initial symptoms before it gets worse?

Rare disease!: Here's a lot of info on PAM: http://www.rightdiagnosis.com/p/primary_amebic_meningoencephalitis/intro.htm Read as much as you can and probably you'll discover that you do not have it. In any case, do pursue an examination that will help you know the actual Dx and appropriate Tx so that you can feel better and avoid spreading whatever it might be. I hope it goes well!