Help - passing out while pregnant

I’m 10 weeks pregnant. I’ve had a super easy pregnancy so far but just recently my blood pressure or blood sugar suddenly changes dramatically all at once and I feel horrible. I was just laying down in bed and I felt like I was about to pass out (is that even possible?) and I had a very odd sensation in my legs (almost like a numbness feeling). My doctors office is closed because it’s after hours so I’m asking.. has this happened to anyone else before?? Insight is appreciated!