Can Prednisone Cause Headaches, Dizziness And A Ringing In The Ears?

Question: My name is Lynne Prout, I am a normally very healthy 70 year old woman. I had a lot of stress last month and developed a systemic hire (rash) that showed up every couple of days but I took one benedryl and it would go away. I saw my GP 12 days ago and he prescribed prednisone. I took 2 10 mg predispose pills 2 days later and within 1 hour I was experiencing an elephant sitting on my chest. I had trouble breathing, was very dizzy and went right back to my GP and had an EKG and a white blood count done. All OK. For the next 3 days I continued to be dizzy had a headache ringing in my ears and a rash on my tongue and throat. The "killer headache" started on day 3 after taking only the first dose of prednisone. The next morning, last Sunday, I went to the ER. They did a full blood work up and a CT scan on my head. Again, All OK. No one ever gave me any other prescriptions. Only to take advil and tylenol alternately. Here I am one week later and I still am dizzy, have mild headaches and the ringing in the ear and now a metal taste in my mouth, all the time, are my symptoms. Is it possible that I am still having reactions to the one dose of prednisone 10 days later? PS. I read that caffeine and alcohol can make symptoms worse in an allergic reaction, Thus no coffee or wine for the last few weeks.

The only meds I regularly take are Nadolol 20 mg twice a day and atrovastatin 10mg once a day.