The conventional wisdom is that it is better to use separate emails. I don't really see a downside to using separate emails. And you will get the emails from EHAS to report your temperature for the first five days, and I don't know how that would be handled, if you have the same email.

As far as testing, not sure what your problem is with the Walgreens website. We had no problems with that website at all. As far as the CVS test, if you are able to get it, it's all good.