What does it mean you feel weak and tired and achy and cold
I have no other symptoms. no cough or sniffles
It may very well mean that you may have the beginnings of a cold or flu. Also, it could be the sigh of exhaustion. If it persists, see a doctor.
probably that you are getting the flu...I have a doctor in my family soooo I would know
your sick and you've had a long day
sounds like the flu, go to bed, drink lots of liquids and get as much rest as possible, if you are really concerened see your dr, you may need antibiotics