Hi I went to the er Tuesday for an headache I had for 4 days that wouldn't go away so while I was there they gave me 2 tylenol 1 ip 800 then 25mil of bentril ad this other med that stared with an r they said works well with the bentril for headache....through and iv. After I was given the bentril I tasted it in my throat and coughed as they were given me the med started with an r I started to get hot...shakey...anxcious....my heart beat went up to 163. Yesterday I felt the same and my headqche came back last night. Today the headache is gone but I still feel short of breath...can u tell me if I need to go back to the er please