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I’m Dr. Janne Nissinen, a board certified neurologist.
Please note that this is an information request and does not substitute an in person visit to a physician or an official diagnostic process. The advice given here is for information purposes only. Please give me a moment to read your question and type an answer.
The symptoms you describe can occur with migraines with distortion of depth perception, objects appearing smaller than they are,vision becoming wave and even prism effects. I suspect that your eyes are in good shape if you eye exam is normal. You may need to be on a preventative medication for migraines such as propranolol.
Very rarely occipital lobe seizures can cause strange visual phenomina, but this would be extremely rare for a healthy young individual otherwise.
I hope I was able to answer your question appropriately.
What you are describing sounds a lot like "alice in wonderland syndrome" which can occur with migraines and presents with visual distortions. It is not dangerous and goes away on its own over time. Try not to worry
a normal brain MRI is also reassuring that nothing bad is going on.
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Thank you and Best Regards,
Janne Nissinen, MD
With hyperventilation stress could cause similar symptoms. Aura's in migraines are not dangerous themselves, you seem to be suffering from what are called "catamenia migraines" which come on during your period. I agree with your doctor that you should not be concerned.