Yeah Come to think of it shawnie it does sound like ammonia poioning. Hey Is Your cory runnning lol i mean swimming very fast Up to the surface like "gasping for oxygen

if so you might want to get some ammo lock or another ammonia detoxer. test your water too an ammo test only runs about ten bucks (stay away from strips they are unnaccurate ive had bad experiences. One time i tested my
pH with strips and it was very low and i freaked out and got the liquid tester and im just like phew! lol but yeah hope this helps! Hope your cory is feeling better soon!