Salt & mineral imbalance can lead to muscle soreness & cramping. Prolonged endurance-type exercise can bring this about. So can some medications such as diuretics (used to lower blood pressure) and statins...
I would suggest you to take following measures:
Do exercise regularly as it improves the circulation of blood.
Use support stockings as it promote blood circulation and limit the movement of fluid. Almost each drug sto
You may be doing too much speed work for your present condition. Most of your running should be Long Slow Distance (LSD), where you run a comfortable pace that allows you to talk with a running buddy. Only do speed work once
Leg strength training can destroy your lower backby
before during and after an aggressive leg workout. The culprit muscles which must be stretched are the quadriceps,gluteals, hamstrings.... I myself have suffered from numerous lower back injuries due to lack of leg inflexibility...