I'm not sure where you llive obviously but my specialist in Derbyshire is fantastic as are the IBD nurses, so call them. I've also had a great team of doctors and nurses in North Yorkshire when I lived up there.
I've called the secretairy and had an appointment the same week, and also the nurses have called me back and talked me through the tears. Most IBD nurses also can be contacted via email so don't suffer alone.
GP's tend not to be too great, especially when you tell them you were fine without meds before. My GP's usual responce is, "call your specialist" I was reluctant at first, but no need to speculate when you can get a straight answer.
Good luck