Cocci?

I normally do cocci preventative every 21 days with the kids.
I noticed a couple of days ago that one of the kids looked bloated- she was acting normally -she just looked too round on both sides. I gave her a Therabloat treatment and within an hour, she had lost most of the roundness. But the next morning it was back again so I did it again. Same thing.
Then I realized that I was 3 days late on the cocci treatment. So I started it right away and no more bloat. It's now on it's three days without any sign.
Now I am wondering - there was no diarrhea- no loss of appetite, etc. Just the bloat. And that was not bad. I just thought it was an interesting thought. That it was an early sign of cocci infection.