Brief Answer:
urgent Neurological check-up recommended...

Detailed Answer:
Hello there,
Welcome to 'Ask A Doctor' service...
I've gone through your query in details...
I can understand your concerns...

Well, migraine with aura itself can cause some amount of vision loss, but they can be transient, and mostly recoverable...

However, given your medical history, with this new onset hearing loss, with preexisting heart conditions, I'd recommend an immediate visit to the nearest ER/Urgent care for a prompt check-up and neurological assessment...

A few relevant investigations like a CAT-scan brain or MRI-brain with carotid doppler study, MR-angiography of the head and neck-vessels, KFT, EKG, 2D-echocardiography are among the initial steps to consider. Management can be done based on the findings.

Please don't panic, but please don't delay any longer and visit the nearest ER at the earliest...

Let me know if I can assist you further...

Take Care
Kind Regards

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