Tink ... i've not of much help but i wanted to mention i had HBP during my entire PG, constantly was monitored (sometimes once to twice per week at the hosp with midwives) with their worry i might end up with pre-eclampsia which they even thought right up til 2 days before my due date ... I'm happy to say i never 'got it', pre-eclampsia that is. But i do remember the midwives & OB stressing i might seek medical advice if i didn't ' feel ' right !!!

Tink ... Tell your sister she simply can't ignore feeling unwell with HBP ... better to see about it then not and also to have peace of mind especially for the baby's sake is so important !!!