Hi, The combination of your symptoms are suggestive as follows: - Anaemia can really cause so many problems either as primary cause or causing secondary effects as your symptoms suggest. - Palpitations in heart can be due to primary heart problem or secondary to many a reasons like anaemia, hypoprotenemia or a general disease. - This reflects in low blood pressure. - Loss of weight can be anything out of the causes as mentioned above or a general disease like tuberculosis. - All these conditions will make feel one very weak, fatigued and feeling sleepy all the time, low energy and so on. I would advise you to consult your Physician for preliminary examination, investigations and get started on specific treatment. - Get a reference for a Specialist as the causes would be found out. - Get all the diseases well investigated, treated/corrected. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. T. Chandrakant, ENT & General Surgeon