Seeing shooting stars in vision

Hey guys something weird happened to me this evening and it kind of freaked me out. I was sitting on the couch playing on my phone when I got up to go to the bathroom, as I sat down I noticed what looked like shooting stars in my vision like I was going to pass out, I immediately stood up and ran to the couch to lay down and it went away. I'm thinking I got up too fast, I already have low blood pressure so I'm pretty sure that's what it was but I freaked me out because that has never happened to me before. Anyone ever had something like that happen while pregnant? I'm going to talk to my Dr tomorrow.