Solu-Medrol and heart rate

I was given solu-medrol for an allergic reaction to something unknown. I was given benadryl just prior because of my itching hives.
Immediately after the RN injected the solu-medrol into my IV I started choking, I couldn't catch my breath, I felt as if I had a rush of adrenaline but at the same time it felt like my heart was fluttering. My blood pressure and my heart rate jumped up considerably. I was unable to speak and had a hard time swallowing. My vision was effected and I had light sensitivity, everything suddenly seemed very bright. My thought process was very distracted, I would try to speak and within a second forget what I wanted to say. I had to concentrate extremely hard just to get out a single word.
I also had slight numbness or loss of sensation in my hands.
I don't want to know what would have happened if I hadn't been given the benadryl first! I felt as if someone was inducing brain damage onto me and instantly turning me into a vegetable.

I had solu medrol 1gm/200 ml infused for 3 days for new MS. First day I became pale and "dead" looking. I had weakness and confusion. Day 2 I was irritable and weaker. Day 3, I was even weaker and began having shortness of breath. Day 4, I woke up feeling like I was drowning. I shuffled as I walked, had a total of 10 pound gain, I was weak and unable to eat. I began to not urinating and had extreme abdominal distention. I could not go to the bathroom. I had to sit or sleep upright. I spent a lot of time sleeping. Day 5 sudden 6 pounds more gain. Had a feeling of death. Heart rate was high..checked in the hospital..BP 90/50. I was so weak that a whisper is all I could do. I spent 3 days in the hospital. Today out of the hospital, I can only eat same amounts. solu medrol caused my system to stop functioning.