We just recently renovated our master bathroom. We put in a new toilet, bathtub, sink, pretty much gutted the whole thing and redid everything. While working on the tub, we have been able to use the new toilet with no problems. Today is the first time we have used the bathtub. When I went to drain the tub, the toilet began bubbling up and won't flush. The tub also will not drain. We didn't have drainage problems with the tub before and now all of a sudden the toilet won't flush. What went wrong??