Calves ache,. rest does not help. toes a little feel cold. standing/moving doesnt help. get itchy when standing. sometimes arms/hands ache too but much less than legs. sign of poor circulation? has been going on 5 days so far?

At "47" it is unlikely that circulatory problems would cause the symptoms described. If you have not been tested for COVID-19, you may have contracted it with relatively mild symptoms. COVID-19 can include muscle aches in extremities, lack of energy and upper respiratory symptoms. Even if fully vaccinated, the variant "Delta" can reinfect individuals.