Problems with energy - Health, Fitness, and Sports

Usually I'm very active, but from some time I've got serious problems with - I don't know how to name it - life energy?

It's really hard to wake up, it's really hard to leave home, hard to do something - and worst of all: I'm constantly tierd

I think it's not depression - cause my mood is from quite good to neutral - and I need to do something

I tried tryptophan supplements, energy drinks - nothin works
Only idea left is to sleep so long to overcome this - but I think it's just stupid

Any ideas what can I do with this problem?
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Scio me nihil scire
I know that I know nothing

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