That is very interesting.
I am going to make a suggestion.
Obtain fresh ginger, slice it and prepare steeped ginger tea. About ten minutes in the cup.
This is an old remedy for sea-sickness, but it works to calm down many inner ear disturbances.
The exact specialty for this would be an otoneurologist and presence of hearing loss is not one of the diagnostic criteria for SCD, which happens to be a rare condition and don't be surprised, should you not get many members diagnosed with SCD, responding here.
Of interest to you might be the following article in regards to treatment:
"Transmastoid middle fossa craniotomy repair of superior semicircular canal dehiscence using a soft tissue graft".
--Source: Otology and Neurotology- 2012 Feb; 33(2):277---
My personal view on craniotomy, the established form of treatment, is that a very careful risk-benefit analysis must be seriously considered and in cases, where the severity of SCD is not intense, alternate symptom management options should be explored.
I hope this helps, however, my comments and suggestions are not intended to replace medical advice.
Best wishes.
Niko
I would see an ear, nose and throat Dr, ( E N T )