Hello I'm 33 Weeks And 4 Days Pregnant Nearly 34

Hello I'm 33 weeks and 4 days pregnant nearly 34 weeks my little boy has been head down since 12 weeks up in till now I've been having braxton hicks for past 2 months and I suffer with spd and a heart murmur two I've been getting really bad stabbing/shooting and like electric shocks deep in my vagina to the point where it scares the day lights out of me about a month ago I go rushed to hospital as I've been leaking white discharge and it's clear and is like water but that said its all fine I'm just worried as I don't know what this pain is it keeps coming and going like every hour to half an hour