If you're unsure, it's best to go for a checkup. However, NSAIDS like aspirin could help in the absence of a proper diagnosis. CAMs like yoga could also be effective. Early morning stretching can help as well or a good old fashioned leg raise may also promote circulation.
Do you experience swollen feet/edema or any similar condition? Have you used or are you using any bloodthinning drug? There are so many gray areas TBH, but a med check should put your mind at ease.