Hmm, this does look concerning. I have to agree with
@bobcochran that she needs to be checked out for nematodes. I don't like these squiggles on her side at all, especially since they seem to move and change. (I'm on my phone or I would circle them.)
If you just got a new cham, I would recommend very aggressive quarantine between the two just in case. Quarantine is always a good idea, but until you are can rule out subq nematodes in your female, it's doubly important.
Keep us posted?
Edit: I need to learn to read. I see you swapped her for a male. I agree - definitely have him checked out. The opportunity for cross infection is too great. Still keep us posted.