So, this is pretty much a moan as much as anything else. A couple of weeks ago I came down with a bad cold - headache, stuffy nose etc. I was too busy at work & ended up having to work through it. I thought I was feeling better but in the last couple of days I've been feeling crap again - sore throat, earache, headache, feeling really hot. I feel like I can't shake it off 
Is this normal? Do people just get run down at this stage? I'm trying to rest up, drink lots of water etc but I just feel like it's not making any difference 