Short hospital stay - mystery virus

So I ended up being admitted on Wednesday eve. Luckily only spent 2 nights in hosp and Dr also used the opportunity to give me an iron drip as haemoglobin always a bit low anyways.... In the end the virus I had/am recovering from is still a mystery. Nasal swab and x-ray was clear, nothing alarming in the bloods... Have still been feeling pretty rotten until this morning, when I woke up without a low grade fever for the first time in a week, yay! So tomorrow back to work! And supposed to go see Dr next week, along with photo again.