Aww, poor you!! I hope the antibiotics kick in soon and you start to feel better!
Pneumonia is awful. My husband got a nasty viral horrible thing right before our wedding, struggled through the day and it turned into pneumonia and he struggled by for months with it going from a non shifting cough to bronchial and then all the shivers, no appetite, etc. By the time he actually went to the doctors he was really unwell and at one point ended up in A&E for some urgent care. So yeah, he had a rough several months of recovery!
So you’re having my utmost sympathy and I do hope you’re on the mend soon!!