Wired,
Delivery to Canada can vary anywhere from 1 to 3 weeks depending on location of product. I have had supplements tied up at customs for almost a month once for some unknown reason. Customs between Canada and US can be very annoying sometimes. The other hassle is that they tend to tack on ridiculous shipping fees to get it across the border. Anyway,you decide what you are going to do. My biggest concern is that you get the right help. When you said you saw rice like things in your stool....could that have been undigested rice given that you have been eating lots of it? Maybe you should get a specimen checked out. Please be careful with what you take. We all know how taking the wrong thing can mess us up. Consider what Onwards said about the Humaworm. She seems to know a lot about it.
Let me know what you decide.