I fly a lot via different airlines and have never used a “medical bag”.
I don’t think I really know what one is.
However, I would highlight that the airlines have never paid any attention to my diabetes kit (or any contents of my hand luggage): it is only the airport security. So if you want confirmation, I would contact the departing airport rather than airline.
So with Ryanair do you take your hand luggage and another bag aswell?When Ryanair/easyjet only allow 1 item of hand luggage they can be a bit more flexible to allow passengers requiring medical gubbins to take on a second bag into the cabin. This means I don't have to struggle to fit my handbag into my suitcase if I tell them I'm type 1, and my handbag does have all my pump gubbins and hypo treatments in it that I'm going to, potentially, require access to during the flight, so I'm ok with that.