Ok so shaking of the head and flashing and body is pale. common signs of flukes I would get Prazi-pro
garlic extreme
and selcon
Meds will not do a thing against flukes.
you can have it on have just in case If you dip a FW dip some of the flukes will come off and you can conferm that she has them this will also help while you are waiting to get some Prazi-pro. Prazi-pro dip is not a recommended treatment rather a tank treatment is recommended treatment the container says you can treat for 5 - 7 day I have done it twice and I would go for the full 7 day treatment. If you have to use the powder version it is the same treatment but you have to use it in a QT where you can use prazi-pro in the DT, I would only do this if you can not catch her quickly get her into a QT all treatment should be carried out in a QT if possible.

Bill