Chronically tired - could my Covid still be lingering?

So I consider myself officially out of the woods in regards to the Covid I had upon returning from Germany earlier last month but lately I'm experiencing random periods of falling asleep and feeling really tired although I go to bed at midnight or sometimes even earlier. Is this a thing with others having had Covid, when they are no longer at risk of infecting others and can pretty much live life as before, yet they're feeling this massive fatigue even if they have reasonable sleeping schedules? Makes me wonder....