This is Dr. David
last october is close to a year ago
most likely your body has started to make its own cortisol and steroid levels already.
I am sorry you are no energy
this was not from you stopping prednisone last October
you should have your thyroid hormone levels, B12, ferritin, iron, CBC, vitamin B12 and vitamin D levels checked.
low levels of these can affect your energy levels.
have you had them checked?