I have strep throat (not group A), have had this terrible sickness for the past week. I am on Amoxicillin and have been taking Ibuprofen religiously every 6 hours. Last night I was very nautious and ended up vomiting. I had a severe headache for hours before that. In the middle of the night I woke up with a feeling that something was sitting on top of my chest, it literally felt like i had heart pain, my left shoulder was in great pain and my arm was very restless.