Does this sound like a cold/flu/chest infection or something else?

to answer all your questions in one word .. yes... for tonight take some paracetamol get a drink of hot milk, rub some vick on your chest and go to bed, see how you feel over the weekend, stay indoors take paracetamol every 6 hrs drink plenty of none alcoholic drinks, if you are no better on monday, yes go to the doctors, especially if you are coughing up green/ yellow mucus, could be a sign of infection, yes its wery popular where i live at the moment , i have had it for 4 weeks mine turned in to a chest infection, and i also had a virus, not nice bur try what i have said and hopefully you will feel better after the weekend..