i am a 59 year old male. very active and fit (gym three times a week and Golf every weekend) but for the past months a my calf muscles are tender and painfull as if I had done extensive calf muscle exercises or have run a marathon. But I have not. The symptoms appear for two to 3 weeks and then dissappear for a month, and then return? The muscles especially sore when getting up in the morning and later in the evening. I have tried anti-inflamatory tablets to no avail.