Edit: Went to the vet today and talked to him for about a 1/2 hour about what causes runny stool in cats and such. The vet went on to explain how Romeo probably doesn't have IBD or IBS purely because the medicine he's being given is working. IBD/IBS normally isn't effected by the medicine that I've been giving Romeo the last couple of days which is a very good thing because IBD/IBS can cause trouble with the pancreas, liver, intestines, and kidneys in cats.
So what the vet is having me do is finish giving Romeo 7 days of his meds and also giving him a pinch of a medication called Tylan twice a day. It's safe and helps with what he suspects is a simple bacterial imbalance in Romeo's intestines. What I do is I give it to him for about a month or until Romeo's poop is 100% back to normal, and then I stop. If the problem returns I start giving him Tylan for longer after that.
Also: Romeo got dewormed today which is quite possibly what could be causing the runny stool. There are several different types of worms that have to be specifically tested for otherwise you aren't going to find them.
The worms is honestly the one I'm betting on because Romeo eats flies CONSTANTLY :I like every day I swear he gulps down 5-10 flies, gross. The vet said the flies wouldn't cause the upset tummy, HOWEVER I know for a fact that flies carry worms often times.
So that's where everything stands with Mr. Romeo Expensive Kitty Butt. 171 dollars later :I
Money well spent imho <3
Woke up at 5:30 this morning (y'know after going to bed at 3) and found out that Romeo is sick again :/ I've been up since then waiting until 8 to call the vet and set up an appointment for him tomorrow when they come up to our town.
I feel like trash. Seriously. 2014 came in and decided to kick my teeth out I swear 'cause this ain't the only thing going on as far as home life goes.
So here's hoping it's something simple like worms or bacteria that can be killed right off with some good de-wormer or antibiotics.