There is quite a bit in the criteria snowmum starting with a BMI of under 27, hence I think the weight loss. I know you will need a referral from you GP and so a good relationship with him/her, them understanding the pain, discomfort and problems associated with too large a bust and, of course, the postcode lottery!! Do a Google on breast reduction on the NHS and see what you come up with.
One of the girls on my last LL was going for it, she was coming down from 22 stone, but I've no idea how far she actually went with it.
I've only DD's and even they can be a pain!!
Well done on the fantastic loss too!!