What Causes Fatigue, Tiredness, Headache And Tinnitus?
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Detailed Answer:
I read your question carefully and I understand your concern.
Since you say not to have had such manifestations in the past I believe that it requires some attention. Fatigue, tiredness, headache, ringing in the ears may be a manifestation of anemia. Another cause may be hormonal abnormalities such as low thyroid function, metabolic issues such as liver and kidney conditions.
So I believe some routine blood tests are required such as blood count, liver and kidney function, electrolytes, blood glucose and thyroid function to screen for anemia, hypothyroidism or metabolic alterations.
Another possible cause could also be blood pressure fluctuations, so monitoring your blood pressure for a few days is advised as well.
If at the end everything turns out normal though and there are no other symptoms indicating another cause then I believe a return to the possibility of fibromyalgia is necessary. Fibromyalgia is commonly associated with chronic fatigue, headache and ringing in the ears are present in some patients as well, so when all the rest is excluded it should be considered.
I remain at your disposal for other questions.