To the doctors: if I give you some symptoms, could you tell me what I might possibly have had?

I'm not a doctor but I do research natural medicines quite a bit to understand various illnesses and treatments. Quinine has been used in the past for the flu, perhaps you caught something going to Morocco, much more likely if you flew on a plane with the recycled air, and the quinine can nip that. Also, you may have a high immunity to your native country's germs but encountered something different this time. There are sand fleas in various areas of Morocco that carry parasites but quinine is not used to treat it, more likely they would have used barberry for that. Mosquitos are found in the swampy areas in the interior of Morocco, have never seen one in the 5 times I've been there during various seasons. I was in Morocco this spring for a couple of weeks, had the same symptoms you did, and believe it was strep throat. Strep will make you feel so tired, and I believe I most likely caught it in the planes.