I need help tooo

[dillia31]

my cin clown has not eaten any thing since easter sunday. She had a long white very stringy poo on sunday. She was swimming funny,and lays most of the time on her side breathing heavy , i moved her into a 10g hex quaratine tank for a couple days,when i approach the tank she rightens up,i put her back in the main tank(prob stupid i know) She didnt eat any thing yet, and no signs of ick or velvet, laying on her side breathing heavy, every one else in all the tanks are ok, even in her tank,
-her and mate , small dwarf lion fish, little cleaner goby
could she be constipated or just stress, we have a very active house, since feb people always around the tank,
could she have gotton stung by the lion fish
(?????dont think a fresh water dip might be good???? or could it
any help pls
45g
fish only tank