Hi there, for the past few days I have had nausea and dizziness. I have been extremely tired, and cannot even stay awake a full day at university. I also have a pounding headache in the back of my head. Also, for the past two months I have had nausea and dizziness, as well as occasional fainting. For just over a year I have been having a very uncomfortable pain in the left side of my chest that radiates around the side of my breast, when this occurs my arms often go limp and I feel like I have trouble breathing. Please help me figure out what is wrong with me. Thank you Jessica