Tiredness, very lazy.
Do you also snore when you sleep on your back? And pretty loudly? If so chances are you have sleep apnea…and the only way I know of that it can be treated is a cpap machine…
Go for a walk. Walking is the best exercise which relases feel good harmone.
lf you have already ruled out anemia & low thyroid, have you checked out apnea or even narcolepsy?