8 hours in the ER

Well, today started off normal, and right as I was getting my 2nd breakfast at 8am I was at the counter at Starbucks (inside my work) and I passed out. Totally fine to on the floor in a matter of seconds! Of course before I could even come to and speak they called not only the base (I work for the federal government on a military base) EMS, but the city and country. Spent 8 hours in the ER today....is anyone else passing out? I know it is "semi-normal" but I never had anything like this with my previous pregnancies and it doesn't seem THAT common from all the tests they ran.