I've had terrible experiences with swapping before. OH absolutely refused to let me swap if there was a chance he'd be out of the country.
But I did initiate the idea of swapping with the pdoc, mainly because she refuses to accept my medication is the reason I am eating so much, she says I have an eating disorder, so I said let's swap medication and see if it makes a difference. So, I am committed to doing it, its just scary to change when it took so long to get it right.