I've just found out the hard way. I've been paying to see a doctor privately, as I'm told be residents that UK nationals are not entitled to free healthcare, however I've recently discovered that the UK and BB have a reciprocal healthcare agreement and so you are entitled to the same public health care as the locals...however I've just had a nasty experience with BB immigration when attempting to routinely extend my visa. Since they only give 30 day visas, you need to go immigration and put in for (ie pay) for an extension. I went, with 35 week pregnant tummy showing, and have since been declined an extension and asked to leave immediately or risk deportation. It seems that British nationals are not welcome to give birth there, at the risk of their babies being "burdensome" on Barbados' - despite me paying through the nose for absolutely everything as a non local (ie doctors visits, heavy import taxes on having my goods shopped over....I now have to find an airline who will fly me out of here...not easy at over 35 weeks...and at real risk of having the baby mid flight. So whatever you do, don't do what I've done and take for granted that as a paying UK national you will be welcomed with open arms!!