Oh my goodness, you poor, poor thing....
My mother's had stuff similar to your symptoms for nearly a month now, she just can't shake it off....
Mind you, she's in her mid-80's, so it's really debilitating for her.....
The only thing that seems to be easing her (now) chesty cough is honey + half a freshly squeezed lemon + a good old slug of Whisky + hot water.....I'm not sure it's helping much, but she's certainly sleeping well!
Harry and I hope you get better very soon!
Sally x