Hopefully its just a fluke and hope you get feeling better. But I do want to tell you that you really should be on a maintenance medication to keep your Crohns undercontrol. And Pentasa is one of the mildest meds you can take with little to no side effects. I went unmedicated and it ended with an emergency resection. But to take something to keep the inflammation down instead of letting it go unchecked is the best advice I can give you. Do you still have any of the Pentasa left, maybe you should get back on it and see how you feel. Good luck!