Please use the SIA cabin crew thread we already have three threads under much the same title discussing the same things!
Just a note to the OP and anybody else concerned about their medical - why worry? Most of you here are young and healthy and not likely to be rejected, you would mostly likely soon know if you were (although you would most likely know yourself). Should you be unlucky then sad to say there is
nothing you can do about it, so like I said why worry?