I should add that in the event you have sudden sensorineural hearing loss (SSNHL), then prednisone is standard treatment, hopefully asap from the onset, to improve outcome, when no causes have been identified (idiopathic).
Look into low thyroid function which is often associated with tinnitus, fatigue and slow healing processes, among many other symptoms and impairements.
You can do your own self-test assessment, for thyroid function, by doing
Dr. Barnes Basal Temperature test.
Prednisone does not increase energy; It's an immunosuppresive drug
and probably prescribed to you to suppress suspected auto- immune
or over-reactive immune activity, possibly based on your doctor's suspicion
of auto-immune condition of some sort.
I hope this helps, however, please note that my comments are not intended to replace medical advice
Best wishes.
Niko
The doctor has prescribed you medication, or if you have chosen?