I totally understand. A chronic disease changes your lifestyle. I have three kids with a chronic kidney condition, and it totally affects everything you do.
There is, though, a decision that was rendered this year by Justice Gaston Jorré, on February 20, 2017, on PKU, which is phenylketonuria, wherein the justice found, on the side of the person who had been refused the DTC application, that the issue was about the medical food preparation, the time it takes to actually prepare food and make sure it has the correct level of nutrition that they can intake.
It is interesting that the CRA is now refusing type 1 diabetes sufferers from accessing the DTC, whereas in the case of PKU they actually had to go to court in order to win their case. The income tax sections are 118.3 and 118.4, exactly on the same types of issues.
Do you have any more information on why the CRA is doing this?