adrenocortical insufficiency
"I was given 1mg for low cortisol. Took it first day ok. 2nd day in absolute rage all day plus agitated and literally ready to go into a mental home. Carried on for 2.5 weeks, on last day woke up with a headache, like my head was splitting open. Saturday, so set off to hospital. Thought I don't know how to get there. Rage and the headache are side effects of prednisone. Each time I take a dose of steroids, bone spur on another joint. "