Please help! Am i overdosing on iron?!

Please don’t judge, I have horrible health anxiety 😣

I’m 34 weeks pregnant and was put on iron supplements for low hemoglobin levels. I took my prenatal vitamin (27mg iron) and started an iron pill they gave me (325mg iron) and now I am so dizzy that even when I’m laying down, the room is SPINNING! Im so scared, please reassure me or tell me what to do about this..

here was what my hemoglobin level was