My African Dwarf Frog Was Floating, But Not Dead. What Happened?

My African Dwarf frog was in my 10 gallon community tank yesterday, and suddenly she started floating up to the top, then swimming back down only to float up again. Her belly looked a bit swollen, but nothing like what a AFD with a bad case of bloat looks like. Thing was, she was most definitely not dead. If I lightly poked her, she'd immediately zoom back down to the bottom.

Whenever she would come back down, she'd immediately scramble for something to crawl under. The plastic plants, the bottom of the submersible heater, the hides/caves, even under the pleco. I've had this frog since September 2015, and I've never seen her do this before. Does anyone have an idea on what this might be? I'm guessing maybe just a buildup of air.

I tested the main tank water. Everything came back fine, and I put a new filter pad in there too. I have the frog in a small quarantine tank for now, and for the most part she's not doing it anymore. I think I'm gonna keep her quarantined for the next week or so, just to keep an eye on her.

UPDATE: I got a 2.1 gallon critter carrier and put the frog in there instead of the half gallon one I was using before.
UPDATE 2: I've had her in a tank by herself for 2 days now, and she no longer has a floating problem. She still seems happy and healthy.

 

Welcome to Fishlore, sorry you're having a problem with your frog
Could you get a pic or short video of your frog? that would help show what you're describing.

 

I have 2 adfs and it's pretty common for them to float at the top from time to time.

 

Ah! Sorry I forgot to add photos! The frog is all better now, and is now longer floating, but here are some photos from when she was in the quarantine tank!

 

**Thread moved to the Amphibians section**

Glad to hear your frog is doing better.