Need support

Hello. On Tuesday I will get a MRI with contrast. For 10 years I’ve had what I think is migraine with aura (not diagnosed) and finally my doctor told me to get an MRI and I’m so scared. Also, my eyes are really strange? I have scary new floaters and I feel my eyesight is getting worse. I don’t understand if it’s just anxiety or my symptoms are real. The only thing I can do is waiting, but I feel so sad. Thank you for reading.