Have heard that juvederm can migrate from its original place.Is it posible for filler to migrate from glabella area into eyes causing floaters and blurry vision.Also have heard that botox can cross the blood brain border as it can be used to treat migraine so can juvederm do this also would this cause neurological symptoms like a stroke.Have also heard this is possible if filler leaks into cartoid atery.Please advice as these symptoms are happening to me but all tests are negative.Thank you.