Hello, there!
It might be a good idea for you to have a general blood test in order to exclude any underlying cause for your tiredness, so that it can be treated specifically. In general terms, if you want to boost your energy, it is a simple regime of lifestyle changes and common sense, including improving diet, increasing regular exercise, reducing stress and alcohol consumption, improving quality of sleep and also taking a combination of vitamin and mineral supplements, etc.
Best wishes,
Jose
I would suggest a full haematology and biochemistry profile, including FBC, ESR, U&E, LFT, TFT, Glucose, Iron, Cholesterol, etc. They are usually known as General Well Person Profiles.
Best wishes,
Jose