While I was fight a frost troll it said is equipped.And when I try to use the enchanter one of my unenchanted items says does anyone know what it is?

I'm not to clear on what you're asking, but could it be you didn't give a name to that item (I assume that item is something you can equip) before you enchanted it?

What I'm saying is is that I have an item that I cannot see unless I look on the enchanter where it is called and I wanted to know what it is,it might be the ice spikes under my guy that follows me.

Oh, I've never seen that before.

Can you see this item when you pull up your inventory menu? If so, find a respawning container ASAP and put the item in it, you're not supposed to have one of those things as it's a generic placeholder and not meant to spawn.

I can only see it when I use the enchanter.

If you're on PC you could probably fix it by dropping everything you're carrying into a container (except quest items which can't be dropped), going to the console and using the command "player.removeallitems".