I've just had (have??) a similar virus - achy, coldy, but worst thing was cough and not feeling like I could breathe properly. I'm 33 weeks pregnant, so that probably doesn't help - bit anaemic, full of baby, etc. My gp gave me an inhaler (not normally an asthma sufferer) and it really helped - lessened the cough, especially.
Three weeks on, its not 100% gone but its a lot better - and with hindsight, was definitely a virus. It worried me, too.
HTH - feel better soon.