Hi War, I don't know the definitive answer, but I suspect the medics would take a dim view of an admission of anabolic steroid use.
The likelihood of serious side effects are unfortunately high, and some of the therapeutic effects may not be welcome in the cockpit (aggression).
Also, here in the UK, questions would be raised about your supply. Technically, although use of the drugs may not be illegal, supply is, so in effect you are buying from a drug dealer. (Things may be different on the continent-you used to be able to buy the stuff over the counter in Spain.)
The nasal steroid is a different kettle of fish, and is not related to the stuff you're using.