Should I be worried of preeclampsia?

Today at my baby shower when I would look down I would see a blurred flash and I am seeing spots in my vision right now, it keeps flashing blackish in my right eye. I feel a bit light headed too. Should I be worried or concerned ? I’ve eaten two meals today and had fluids so I’m pretty sure that’s not it. Idk what to do it’s worrying me. But my doctor isn’t open today or tomorrow