I know this is probably thinking ahead too far but if and when you get certified, one thing you may consider is to discuss your condition with whoever your dive buddy is before each dive. If I were paired up with somebody that has a known condition, I'd like to know if there are any specific things I should keep an eye on and whether or not I should provide any special assistance in the event that you become incapacitated. Of course, some people may not be willing to "take risks" diving with you so you will have to use discretion.
Also, I wouldn't worry if it takes you a month or more to get clearance from a doctor. My wife had to wait two months after my checkout dives to do hers since she had to have a bunch of doctors visits just to verify that yes, her asthma was triggered by allergies. If you explain the situation to the instructor, I expect they'd be more than willing to include you on a future set of checkout dives.
Good luck!
Also, I wouldn't worry if it takes you a month or more to get clearance from a doctor. My wife had to wait two months after my checkout dives to do hers since she had to have a bunch of doctors visits just to verify that yes, her asthma was triggered by allergies. If you explain the situation to the instructor, I expect they'd be more than willing to include you on a future set of checkout dives.
Good luck!