Preeclampsia

My feet and legs have been retaining water like crazy. Today was my 24 week appointment and I've gained 13 lbs in the last 4 weeks! All of my measurements came back okay otherwise. For instance my belly is exactly 25cm ( weeks pregnant +\- 1or 2 cm is considered perfect according to my doc). My dr looked at my feet and legs and said they were huge, which I agree with. My blood pressure just sitting down in the office was 140/60, and this wasn't the first time that's happened. Believe it or not, before getting pregnant I have issues with LOW blood pressure . 

Needless to say I'm now being monitored for preeclampsia . My visits are being moved to every two weeks. I've been pretty good with my diet , but now I'm going to have to be super strict . Chugging even MORE water, no cheese or tomato sauce , and really monitoring salt intake. Trying to get this water retention and swelling under control! I'm also told a food journal is a good idea. 

It's such a disappointment to feel like you've done everything you were supposed to yet have your body reflect otherwise . Especially when I'm only 24 weeks . 

Any other mommas who have dealt with preeclampsia or being monitored for preeclampsia during this pregnancy.... or any other pregnancies ..?