gnbkr
I seem to recall a similar discussion with our CFI. It may be the case that you can get a restricted Class 1. As the name implies this will restrict the work that you can do, but I believe it will allow you to instruct. Best of all the restriction will be lifted if you complete at least 500 hours without incurring any problems as a result of your condition.
I have no idea if your particular condition precludes you from having a restricted medical but I would imagine that it worth finding out, assuming you have not done so already.
Best of luck whatever you do.