18 weeks My head hurts but I don't understand if it's spinning. I thin…

18 weeks My head hurts but I don't understand if it's spinning. I think when my head spins, it gets dark in my eyes. But I can't figure out if it's spinning or not, just like something is pressing on my head and there's this feeling that it's spinning, but it doesn't get dark. I hope they understand that I wrote this ???