Hi. I have experienced all but tinnitus. We have approached the issues currently by addressing them as anxiety ridden symptoms ( unless you have diabetes)... ... we started all these changes as good health and diet practices to clear all systems.... digestive, neuro muscular and finally the nervous system.
A neurologist has me on supplement B-12 and Alpha Lipoic acid for neuropathy and all the tinkling. I am 64. my body fat and diet is primarily mediterranean lo fat and ABSOLUTELY 5 fruits and GREEN vegetables each and EVERY day.
I had your scary symptoms along with headaches for 10 years. Try healthy life practices one at a time. I mean it. Walk at least 1 mile per day without distraction. In the winter, walk in your hallways, at a mall or on a track. I do quick inhale thru nostril
After 1 month, see which symptoms disappear.
I also have a CPAP machine after a sleep study ... CPAP stands for Continuous Positive Airway Pressure ... you may have apnea which is not allowing you to get proper rest due to poor breathing when you are asleep.
Best wishes.