Two months ago, although in perfect health, I suddenly woke up with excruciating pain in one internal spot of my right elbow that radiated till back of my shoulder and forearm right up to my fingertips. I was told it was tennis elbow. I took physiotherapy too but till now there is no relief. I also started having leg cramps and feet pain upon slightest stretching upon waking and walking, knee pain, bones started aching and then even muscles became painful. I am all the time tired and suffer lack of energy and occasional headache and blurred vision all through the day. My mouth leaves a very unpleasant taste upon waking and I feel dry mouth and thirsty all night and in the morning. My sugars and blood pressure are all under control with the help of medicines. I WANT TO LOOK INTO THE CAUSE, WHAT CAUSED IT. Till previous day I was in perfect health then suddenly so many issues have cropped up that I suddenly feel so sick and old.