I was exacly the same with the fluid intake in the first tri - actually still pushing myself now & usually I'm a 2L a day girl with no issues at all.
The other thing is that I can usually only drink it room temp (after doing so for so many years with IVF) - but now I can only drink it cold... room temp gives me nausea

The best thing I found was mineral water with a little syrup or cordial in it - or even the fiji water with the splash of flavours etc.
I was drinking a lot of ginger beer as well, but that was to help with the morning sickness

I have only just discovered food again now because I'm feeling better... lucky you may escape the m/s... I'll be so jealous

I would say the discharge is from the meds you're taking... if there's no pain/itching etc its not likely to be anything bad hun xxx

ETA - I think its about time you updated your blog for us stalkers, you know