Frustrated

[Sasha]

This frog is making me crazy! These are a few pictures I just took of Fiona frog:


To me she looks absolutely beautiful and fine. Walks normal, eats normal, most of the time her color is a pretty green like this. Here is what has been going on, I'll start with yesterday. Last night she was sitting on her substrate with her back legs stretched straight out. I tried to pick her up and she let out a squeak telling me to go away. When I touched her she tucked her legs back up under her belly but stayed on the substrate. The humidity at the time was about 65%, temp was 77. I gave it a mist and went to bed. When I woke up this morning she was soaking in her water dish. I kept an eye on her and all of the sudden she put her nose in the water and then flipped over and freaked out trying to right herself. Right away I reached in and pulled her out and put her in her empty food bowl. When I picked her up she was really soggy feeling like she was sitting in the water for a long time. She eventually calmed down and went to sleep. I left the house and came back 4 hours later and found her laying on her back in the substrate with her legs back legs straight out and her front legs curled by her chest. I picked her up and her legs were stiff. This time I put her in a small critter keeper. After about 5 minutes she righted herself. I tried to give her a warm Pedilyte bath as I got the larger critter keeper ready for her. She did not like it and would not sit in the water. completely freaked out because she couldn't climb the plastic walls and eventually ended up on her back again in the water and couldn't right herself. Right away I dumped the water and put her in the larger keeper which is when I took these pictures.

This has happened one time before...I checked on her and she was sitting on the bottom of a log in the middle of her tank. About 10 min later I heard this screech and saw her laying in the front of the tank stretched out stiff. Again right after this happened she was walking around normal, jumping, eating etc.

There is poop in the tank but I can't be sure if it's hers or Shreks. Sometimes she seems bloated but it's after she's been soaking in her water for awhile. I dust their crickets at each feeding with calcium, and once a week using Repti-vite. I was feeding them every other day about 6 crickets for each but have started feeding every day about 3 crickets each. I was worried that maybe she somehow has a calcium deficiency.

The tank is a 12x12x18-I have an 18x18x24 coming next week because they love climbing and trying to get out of the tank they are in now.
The temp is around 80-85 during the day and 72-76 at night.
Humidity varies between 60%-80%.
During the day I have a 5.0 UVB light and at night I have a 40 watt red bulb that I only turn on to see them.
Substrate is eco-earth
Plants are plastic. I had a small pothos and a bamboo but noticed that she wasn't acting weird until I put them in, so I removed them.
Her tank mate Shrek is smaller than her. Although can be a little more hyper than her at times.

I'm sorry I couldn't get a picture of her legs when it happened. I was more focused on helping her than taking pictures. If it happens again I will get them and post them.

I'm just stumped and I really love that little frog. Even more now that I see she has a little heart on her side. Any ideas as to what is going on?