Thank you for asking after me, it means a lot.
I did think I was improving, and I think I am in some ways. I’m no longer puking, or haven’t for a few days. I haven’t had my airways blocked with phlegm for some time, and I’m having fewer coughing fits, though they still happen sometimes. But my temperature still goes up in the afternoon or evening, it went up to 37.9 this afternoon, and I was sweating badly. I’ve taken paracetamol and it’s come down.
I’ll call the GP tomorrow. I was supposed to get a chest X-ray, which has seemingly fallen by the wayside. The problem is that the longer it goes on for, the more the pessimism overtakes me.
My DDs are okay, thankfully. My DH took them to the park yesterday afternoon, which was lovely for them and gave me some peace and quiet. DD2 had a call from her best friend and they played on roblox.
I had a call out of the blue from a close friend yesterday, which made my day. 
Little things mean a lot at the moment and keep me from getting too sad about all this.