I saw my Doc today and asked about it. He said it was all okay I thought it must be something to do with bub pressing on some important vein/artery or something too. I had the dropping feeling before this started... All the best tomorrow...
Got much the same response too - and whatever it is its let up, so my BP is back to normal and I don't feel so fuzzy.

However .. being 37 weeks tomorrow, since I don't have high BP or swollen feet or anything interesting on that pee litmus test, now they're all interested in where bub's head is, so both the midwife AND doc had a good prod around looking for the head! Argh! Its right in my pelvis, jammed on my bladder, ok? Sheesh lol