I do fully understand the situation you're in Andy, having followed your posts - and those of others - on this forum. Indeed - if I've learned nothing else here - finance is a MAJOR problem to anyone who meets and falls in love with a filipina. My private life is .... just that ... but believe me I genuinely sympathise with you.
TB is a difficult enough subject even for health workers to understand. For my own benefit - and hopefully also forum members - I've spent much time keeping up to date. My late Dad ( a GP ) acquired TB ( " consumption " ) from a patient 50 years ago - it should not STILL be a major worldwide health issue.
The facts as I understand them are in the " sticky " Health Issues thread on TB.
My personal opinion - which may be reassuring, at the same time as frustrating ( because of the effort and cost of pre-screening ) - is that a healthy previously BCG-vaccinated person, even a filipino, is at LOW risk of developing the active form of this illness.