What causes sinking feeling in the heart?
Patient: Since morning after getting up from the bed and till now I am having like sinking heart problem and seems like I am very tired and sometimes I have to take a deep breath....I took my breakfast, did shopping and made dinner and took dinner but the feeling is same through out the day.......what is that and how could I be normal? Please help...I am 45 and have two childrens 10 and 11. Doctor: hiit can be hypotension or because of brahdycardiaget your blood pressure and serum electrolyte measured some times loss of electrolyte can result in  symptoms you are havinga 2d echo should be done to rule out the cardiac functionshowever intiallly get your blood pressure and blood sugar checked up ,both hypotension and hypoglycemia can cause feeling of sinking