I don't understand why nobody has responded to my question. My one nail has returned to normal but now the same finger on my other hand has the issue. I don't understand what causes it. It looks bad. I would like to know how to fix it. 

Please, if anyone has any idea how to fix this weird thing I'd love to hear it. I'm about to paint my nails just to cover it up. It's happening to different nails, too. I can't find an answer online anywhere else. 

I don't think I have ever heard of this..... if it's possible- could you take a picture and post it on here? That way i can see exactly what it looks like.

If this is now happening to other nails you may want to see a doctor just to make sure nothing is wrong.

Also- does the edge hurt?

I've tried taking a picture of it but it doesn't show up well. 

The transparent part is somewhat opaque but when I place an orange stick under my free edge where the transparent part is you can see the outline of the orange stick. 

It has come and gone and come back again on the free edge. I find it odd. I've read other places that it could be too much oil in the nail which causes the transparency. But my hands aren't oily much and I don't submerge them in water to do the dishes. My dad does the dishes. So I'm just confused.

Thank you for your reply :)

EDIT: No the edge does not hurt, there is nothing painful about it at all. My skin around the nail is normal as is under the nail. It doesn't seem to be an infection of any kind.

Most of the transparency has disappeared now. I don't know what to think. I guess it's just hyper-hydration. I thought maybe it was because I was using cuticle/nail oil every day. But I used it about a week ago after not using it for a while and it didn't do it. I'll just assume it's hydration. :)