hi there, i have various symptoms, i have irregular heart beats but no real heart diseases, i have very irregular and weak urination symptoms, very weak and tired, and have gained about 4 kg in couple of weeks even thoughi eat less then my 2 year old, lower back pain, breathlessness. I am scared that it may be heart failure or anemia with blood loss. My stomach seems slightly rounder then normal, is there distinctive signs for anemia with blood loss as the cause