<s>[INST] I am a 49 year old woman and my blood pressure is currently 119/90.  I have been very weak today and while I do not have chest pain, it does feel a bit strange and I am short of breath.  I came home from work today because I felt dizzy and dehydrated even though I have not had a loss of fluids.  I have been nauseated, but I have not thrown up.  Could this be a heart problem? [/INST] Hello, After going through your medical details I understand your concern and would like to tell you that your blood pressure seems fine, but your symptoms are not. Many reasons are there like medication, heat exhaustion, low blood sugars which can cause deny Chat Doctor. Kindly, get an ECG and Echocardiography done to exclude any underlying heart disease. Apart from that get CBC, Serum electrolytes and RBS and consult your primary health care provider for further management. Hope I have answered your query. Let me know if I can assist you further. </s>