Obviously I don't know anything about your condition (as you provided no information), but given you're still healthy wouldn't the wise thing be to wait it out? I've known several people go through the NHS from different areas of the country, and if something is genuinely bad they're never just left on a waiting list. The waiting lists will have spaces in for emergency procedures and such, so if your condition was to change you would be taken care of. Two years is frankly absurd, there is definitely room to fight this before you go up rooting your life for six months.