What Are The Side Effects If You Skip Taking Prednisone 40mg?

I was prescribed Prednisone 40mg for 4 days with the taper but I stopped after 4 days cold turkey and i m having problems I stopped after 4 days not knowing it could be a serious deal until I looked up the potential adrenal crisis and I need to know if its safe to start taking them again after a 5 day withdrawal. I have a pressure headache and it feels like a sinus infection sorta, and my motor skills are getting a bit wobbly.. like in my fingers and arms. I talk on the phone all day customer service and I noticed I wasn t all there today, like im tripping over my words and jsut didnt feel myself... can I start taking it again or am I shocking it after 4 days on, 5 days off cold turkey... PS never taken predisone before this so didn t know!