What causes weakness and lack of energy?

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Posted on Tue, 6 Dec 2016 in Medicines and Side Effects
Question: i feel weakness and lack of energy without doing much activity. i'm afraid i may have anemia
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Answered by Dr. Panagiotis Zografakis 57 minutes later
Brief Answer:
you'd better do some tests

Detailed Answer:
Hello,

unjustified lack of energy may indeed mean anemia but it may also mean other things like thyroid disease or depression for example. There are numerous causes so you'd better do some basic tests to exclude some of the most common ones.

- complete blood count to check for anemia (mostly)
- thyroid stimulating hormone (TSH)
- electrolytes (sodium, potassium, calcium)
- urea and creatinine
- liver function tests (AST, ALT, ALP)
- glucose

Other important causes of unexplained lack of energy include sleep apnea syndrome and depression. If all else fails to explain the symptoms then depression might be the answer. You should investigate organic causes first though.

I hope you find my comments helpful!
Please contact me again, if you'd like any clarification or further information.

Kind Regards!


Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Panagiotis Zografakis

Internal Medicine Specialist

Practicing since :1999

Answered : 3678 Questions

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