Do my plants have a virus!?

So after a rough start because of my young plants being defoliated completely by iguanas, I resorted to caging them up (the plants), and can now see that my trees are taking shape. They are about 4 months old and as tall as a human.
 


 
 
 
My "Trinidad Scorpion" is bubbling with fruit

 
But.. I think I have issues with 3 plants and I dont exactly know why they are behaving this. I am concerned they might have a disease that could spread to the other plants. Preemptively, I have removed two of the suspicious ones out of the cage and into another part of the house. 
 
This is my "carolina reaper, its new leaves curl a lot and as they grow they seem to straighten out a bit. Its filled with flowers but the vas majority of them just drop, about 4 peppers have just set recently.This one is is still in the cage.

 
 
This next one is one of my  youngest "chocolate bhutahs" and recently its new leaves have also started curling up.


 
 
And this last one is the one that worries me the most, as the new leaves are looking very deformed and curling downwards, it also just got its first flower.

 
 


 
Is this something I should worry about? Could it be the tobacco mosaic virus (no smokers in the family)?  Could this be caused by over fertilization? What do you guys recon I should do about this?
 
Thank you very much for your help.
 
Cheers,
Abel

The last one looks like pest damage from broad mites. The others probably got hit too. Hopefully not as bad.
Separating them is good. You can treat them with neem oil spray on the leaves.
Prune the new growth tip in your last picture. Those small young leaves will probably fall off anyway. Better to go ahead and remove them. Mites may be still feeding on them. Or they have already moved on and left their saliva, which contains chemicals that continue to destroy the plant tissue they were eating. The big curled leaves are probably ok to keep. I have 3 plants that still have those. I pinched off the new growth tips and they continued to grow normally after the mites left.

Yeah broad mites suck. Azamax is good, Ive never used neem.

Mr. West said:

The last one looks like pest damage from broad mites. The others probably got hit too. Hopefully not as bad.
Separating them is good. You can treat them with neem oil spray on the leaves.
Prune the new growth tip in your last picture. Those small young leaves will probably fall off anyway. Better to go ahead and remove them. Mites may be still feeding on them. Or they have already moved on and left their saliva, which contains chemicals that continue to destroy the plant tissue they were eating. The big curled leaves are probably ok to keep. I have 3 plants that still have those. I pinched off the new growth tips and they continued to grow normally after the mites left.

Click to expand...

I checked the plants today, due to my severe miopia, I was able to spot those little bugger waltzing around on the underside of the affected leaves. Broad mites confirmed. I sniped off all of the affected growths and currently looking for neem oil. I hope I can find it here, never seen it though.

I was also able to see mites on the other pepper plants but they dont seem to be suffering any serious effects from them. They will be treated with neem as well.

Thanks for your help!

Last picture looks like mites mate.  Classic leaf deformation, especially new leaves.  Use Lime Sulphur or Mancozeb plus or wettable sulphur, preferable in rotation as they can become somewhat immune to the same spray used over and over.
 
They will travel to your other plants via wind or you transferring them from your hands.  You generally won't be able to see them, even with a magnifying glass so use a little microscope if you can.  You'll see them easily at 30x power.