I feel stupid that I am asking this! I have been dizzy to the point I might pass out! My vision is…

I feel stupid that I am asking this! I have been dizzy to the point I might pass out! My vision is been blurry and that can’t been normal but just wondering if I should be worried about it! I am 18 weeks and 3 days pregnant and I don’t know if I should be worried or not! I have been throwing up! I have been trying to eat! I have been drinking water and milk and juice and stuff so I know I shouldn’t be dehydrated or anything I don’t know but please what should I do! I know my husband won’t take me in but I am getting to where I don’t know what to do