Hope you get well soon!
The fly is a
Siphona (a tachinid fly) - from the long, hinged proboscis, and general colour and shape. They are fairly common at this time of year. Species-wise it is a lot trickier because
Siphona is probably the most difficult tachinid genus to identify - even with a specimen - but the commonest species by far is
S.geniculata (a parasitoid of crane-fly larvae) and this one fits the bill with it's strong margin bristles on tergite* 1+2
* tergites are the dorsal plates that make up the abdomen and the nearest to the thorax is called 1+2