Passing out on Period😭

Today I’m at work, it’s the busiest day of the week and it’s also day 1 of my period 🤦🏻‍♀️ I do fine for like an hour and a half then I start getting sweaty. 🥶(which never happens cause it’s a cold building) so I take my coat off and I get the chills to the point my hairs stood up on both arms but I would get hot flashes at the same time. 🥵Mind you... the cramps hurt so bad I had to hold back tears, (which never happens either) I’m shaking at this point and I couldn’t seem to catch my breath. So I feel like I’m going to pass out. I can’t shake the feeling and finally tell the leader lady and she immediately tells me I can go home👌🏼. I get home take medicine and lay down and I’m good after a couple hours. This has happened a few times and I’ve been to the ER because of it . But it was the same doctor and he said I was fine every time. He said it WASNT anemia, that the test show nothing wrong, probably that it was anxiety and I was hyperventilating 🙃🙃 but I’m overthinking now,

what if he’s wrong. 🤔