So nervous and anxious!

So on Sunday I had a pre-eclampsia scare, I was out of town visiting my mom and in-laws in this very small town where the hospital is known for subpar care but I had most of the symptoms and we didn't want to risk anything this late in my pregnancy (37 weeks today). So they ran all these tests and my blood pressure was unstable but they detected no protein in my urine so they told me to put on compression socks when I sleep and discharged me. So today at my check my blood pressure was normal but my doctor came in and her eyes got big when she saw how swollen my feet were, which alarmed me because her normal response to anything that I worry about is "it's just a part of pregnancy". She also said that they did detect some protein in my urine sample. So, now I have to potty in this huge jug until tomorrow, and then I will take it to a lab. She said if the protein level is too high we will have to get the baby out, because he's doing ok now but if we wait that could change in the next couple of weeks. I am so nervous now!