See a doctor for persistent fatigue, unusual breathlessness, pale skin, dizziness, a racing heartbeat, or excessive thirst and urination. These can signal anemia, a blood-sugar disorder, or other conditions.
These symptoms are diagnosed with a simple blood test, and many causes are treatable. A supplement like HemaRenew is not a diagnosis or a treatment. Getting evaluated early means treatable causes are not missed. Per the NHLBI, blood conditions need medical care.