Hello.
Thank you for your replies.
Keeping in view all the information you have provided, it seems that you have Idiopathic Chronic Fatigue. This is a very common condition found in as much as two-thirds of patients with chronic fatigue. The exact cause of this condition is not yet known. The symptoms usually include an inability to initiate activity (perception of generalized weakness, in the absence of objective findings), reduced capacity to maintain activity (easy fatiguability); and difficulty with concentration, memory, and emotional stability (mental fatigue).
Absence of good quality sleep can worsen the fatigue. So it is very important that you get good sleep.
You do not require any additional tests for now.
Management of this condition is mainly by cognitive behavioral therapy (CBT) and graded exercise therapy (GET). Iron supplementation, even in the absence of anemia has shown to help in reducing fatigue.
I have the following recommendations.
1. Please maintain good sleep hygiene practice and please do not over-sleep anytime.
2. You can start with iron supplementation with Ferrous gluconate 60 mg (Ferate [OTC] or Fergon® [OTC]), once daily with meals, for 1 month.
3. Please get in touch with your GP/ a therapist to discuss and start the above mentioned treatment options such as CBT and GET.
I hope this was helpful.
Let me know if I can assist you further.
Thank you.