Meningioma and cyst
Late 1996 I had a meningioma (benign brain tumour) diagnosed. Many mysterious issues were explained: (right ear) deafness, diplopia (double vision) to right gaze, numbness right side face and other more minor, but annoying, issues. At last, there was a cause. A watch and wait approach was taken ("if it ain't broke, don't fix it"). It was about 3 years ago (2014) that a cyst developed,
associated with the meningioma. This caused progressive walking issues (muscle control). A "shunt" procedure was done (August 2015) to deal with hydrocephalus. Epilepsy was experienced (July 2016) - started about 1-2 years before, but was not bad enough to realise what it was. Just irregular "brain attacks". Not painful, just unwelcome. Presently controlled by medication. Walking still very poor wheel/power chair for getting around. Life is manageable (with some assistance). Follow the link below (and those within) for some more detail.