This is Varicose Veins Problem Use Stockings Limb Elevation with one Pillow while Sleeping Any Kind of Painkiller

Many condition may cause this.. better to evaluate clinically

Plenty of water Consume more nuts Calf streching exercise Tablet Evion Lc

Calf pain and cramping during running, especially with a feeling of “knots,” is most commonly due to muscle fatigue, tightness, or overuse strain, particularly after many years of activity. other contributing factors can include dehydration, electrolyte imbalance (low magnesium/potassium), improper footwear, or inadequate warm-up and stretching. since it improves with rest and now involves both legs, it is likely muscle-related rather than a serious vascular or nerve problem. you should first consult an orthopedic or sports medicine doctor to rule out tendon or circulation issues, and then follow a guided rehab/strengthening program. regular hydration, calf stretching, gradual training, and proper shoes usually help prevent recurrence.

It could be due to Various reasons At your age it better to look into Doppler or Ankle brachial pressure index If both are fine then we can go for tablets Muscle relaxants with Supplements will do good Vitamin D deficiency can also cause it