IIH is a build up of the spinal fluid which collects in the skull causing pressure on the brain causing daily headaches, and pressure in the back of the eyes on the optic nerves, I have Lumbar punctures every few months to drain off the excess fluid and lower the pressure, but it's very hard to deal with, it causes fatigue and generally makes life difficult.

Then topped with TN life is pretty nasty as you can imagine!