I think a good few Universities would have a good look at you as a medical student. You'd have to show evidence of recent study though, it's pretty demanding in terms of entry requirements. You might have to settle for an undergraduate course or graduate depending on what the admissions teams suggest.
All the nurses I have met who trained in the Philippines were out of this world epic and trained to a very high standard- I could scarcely believe it. Furthermore they had the work ethic to go with it, too. I would think after that medical school would be a relative breeze to be honest.
Nursing as a vocation in the Philippines is what I think a lot of us would hope the UK vocation of healthcare would be but the political will insists on something very different.
In the present climate I am not sure why any international prospective student would want to be a doctor in the UK though. Train here by all means but head for better prospects elsewhere after that I would say.