Re: Uh.. what do I do?
I had the same issue a couple years ago, after trying everything my dad came over and took the toilet off and found out my daughter had flushed some dixie cups down there and they restacked themselves as we flushed. It took him 45 minutes of pulling them all out with pliers (they were plastic) and all was fixed. Taking the toilet off isn't a hard thing to do but if your lease says that you can't do repairs I would hold off on it if you can.
mama to 5 and proud of it!