I have recently experienced knee joint aches and elbow joint aches. Especially when I kneel down on the knees and during my excercise workout routine of squats and skull crushers. I lift pretty heavy weights, but this seemed to start about a month ago. I had recently gained about 20 lbs due to more dedicated workouts and the increased weight was more or less high fat intake. (5 batches of tiramisu within 2 months were consumed, I have a sweet tooth!!). Could these aches be due to the increased weight gain or other areas?? Could vitamins or herbals help????