Yes and no!
I did notice them 'itching' I think it was day before..
But one of the fish is really scaredy.. each time something changes we go through this I hate you phase where it tries to hide and sometimes hurts itself
I think its just in its nature to be like that.. I usually judge things by the Black Moor and the other commons behaviour cause they are more stable!
I just did a test

we have:
25-50 Nitrates
0 Nitrites
GH is 16od (always this high, its the water here never changed and never seemed to bug them at all!)
KH is abot 6od - 10od (again always same)
and 8.0 ph roughly (hard to distinguish between them)
And lastly ammonia is 0.
Exactly as it has been for the past few weeks :/ thats what gets me on why they are sick now *shrugs*
What is your thought about having fungus?? its not exactly cotton wool its like (im going to be disgusting here, excuse me) when you wiped ur nose on ur dark clothes when little? and it was like this white thing LOL im so sorry don't know how else to explain it.
When I tried to close the light the fish (commons) immediately hid and were sitting on bottom.. once I turned it on they were swimming happily :// I think tomorrow I will just leave it closed all day.. and then on Tue they get their next meds dose and hopefully this will zap it all.