Patrick, I‘m presently at a recruiting center doing medicals. Like combat_medic stated, given a a common medication, for example, on sick parade, for something simple as the common cold could have a detrimental effect on your health (from causing serious health issues to even death!) if you deny to medical personnel that you are not on any other meds. This is why every medic worth his/her salt doing sick parade will ask his/her patient:
a/ are you allergic to anything;
b/ do you have any other medical conditions; and
c/ ARE YOU TAKING ANY MEDICATIONS (prescription or over the counter meds/supplements etc)
The military as a whole, and medical personnel specifically, are concerned with the welfare of the individual and not just to make the "staus quo" in maintaining healthy bodies for the military.
The questions asked, and medical performed at the recruiting centers are not just determining whether or not an individual is medically fit for the Canadian Forces, but most specifically, that no undue harm or further deteroration of an applicant‘s health will be compromised by the physical and mental stresses of employment in the Canadian Forces.
Health issues aside, when it is discovered that an individual has lied (and believe me, sooner or later it will) on his recruitment application, he/she will be determined to be an irregular enrolment (at the least) and be (again at the least)dismissed from the Forces. And your own integrity will be called into question.
I know this may sound a bit harsh, Patrick, but believe me, I highly recommend that you be as truthfully honest as you can when applying. You sound like an individual with a great set of personal values; maintain your own sense of intregrity and respect from others (if can‘t trust your own trench partner - your‘e totally screwed: you‘ll find there is no other sense of comradship or friendship than there is in the military). Take it from an old fart like myself; I had to wait six months because of a medical condition before starting basic at Cornwallis 22 years ago).
X031 @ 711(737)
Militi Succurrimus...We hasten To Aid The Soldier
Pro Patria...Work For Country