Leg aching is not something to ignore it may lead to worse condition of legs. It is important to do proper exercise to have movement in legs. With age also you may feel aching in legs. Taking painkiller is not any solution, as they will provide relief from pain till the effect of pills.
Once the effect is over your leg again start paining. Such paining is also occurring due to sickness. Most of the time and in present scenario leg pain is also caused by stress or emotional trouble. Taking milk at time before sleep will help you to have sound sleep which give rest to your body and mind, soak your leg in hot water for sometime will provide immediate relief from pain.
Regress occurrence of cramps also leaves your leg in pain. Drink lots of water to get rid of cramps. Your leg take all the burden of your body they manage all the weight take good care of your legs as they provide you strength.