<human>: I am a 56 year old female. I have been experiencing palpitations, very tired and just want to lay down and sleep, feel dizzy and lightheaded. Have a low grade fever with a slight headache. Have a dull type fullness in upper abdomen. Experiencing slight heaviness in neck and chest.
<bot>: Hello! Welcome and thank you for asking on Chat Doctor! I understand your concern and would explain that your symptoms could be related to a metabolic disorder (anemia, thyroid dysfunction, electrolyte imbalance, etc.) or an infection. For this reason, I would recommend consulting with your attending physician and performing some tests: - a chest X-ray study-complete blood count for anemia-blood electrolytes- PCR, ESR for inflammation- thyroid hormone levels for thyroid dysfunction- a cardiac ultrasound to examine your heart function and structure. If all the above tests result normal, I would recommend performing an ambulatory 24-48 hours ECG monitoring to investigate for cardiac arrhythmia. Meanwhile, I would recommend you to closely monitor your blood pressure values. Hope you will find this answer helpful! Wishing good health, 