Can you do a 75% water change as soon as possible please, making sure to temperature match the new water to the tank temperature, and use the right amount of water conditioner. Can't see any signs of ich on the fish in the photos, and we don't want to add chemicals to a tank without good reason to, medicines do cause some amount of stress to the fish, which we don't want, especially since the medicine you added doesn't treat the current problem.
Fresh clean water is the best first line treatment for any problems, especially when you're not able to test the water for ammonia or nitrites yet.
Once you've done the water change, please come back and answer some more questions so we can try to figure out what's going with your fish. If you can take a short video of her behaviour, that could also help. The video upload link doesn't work, but if you upload to youtube and copy paste the link here, people can see it then.
Then copy paste this template and fill in whatever you can
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The more information you can give us, the better we can help. If you can't take a video, can you describe her swimming behaviour as clearer as possible please?
Tank size:
tank age:
pH:
ammonia:
nitrite:
nitrate:
kH:
gH:
tank temp:
Fish Symptoms (include full description including lesion, color, location, fish behavior):
Volume and Frequency of water changes:
Chemical Additives or Media in your tank:
Tank inhabitants:
Recent additions to your tank (living or decoration):
Exposure to chemicals:
Digital photo (include if possible):