The vital question here is - how is your mood, especially since past 15 days. If your mood has been low along with the symptoms you mentioned, it is possible that it may be the start of a depressive episode.
Most people feel that in depression sleep is reduced, but a fraction of individuals report excessive sleep, excessive hunger and tiredness especially in legs.
You need to be screened for depression.
Next Steps
See a psychiatrist
Health Tips
Until you see a doctor, please try to maintain a routine and not stay at home all day long