Thank you very much for all of the detailed information.
It is possible that this is due to stress. Cats do not handle stress very well and will often hide more then normal.
If this continues one thing I would double check with your vet is whether they checked the thyroid levels. Cats are prone to Hyperthyroidism and this can cause some increase in urination, diarrhea, change in behavior as well as some other things such as increased appetite, dull hair coat just to name a few. Should the diarrhea return I would also consider getting a fecal done just to rule out things like parasites.
I would try to see if you can do some things to decrease anxiety and see if this helps.
I would suggest getting at least one Feliway diffuser ( plug in ). These release cat calming pheromones that work very well. You can also try a Feliway collar or your vet may carry the new collar called NurtureCALM Click here
Composure treats also work well for cats.Click here
Some experts will also recommend Rescue Remedy and you are welcome to try this but in all honesty we have found this to have little to no effect on cats.Click here
If she enjoys the laser I would try to get her to play with that a few times per day as this too will help reduce any anxiety.
I would give her a few more days and try the Feliway and hopefully this will help and she will be back to her old self in no time.
I hope this helps, please reply back if you have additional questions
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