Burning Sensation Behind Knee

After long walks during the day, i feel a burning sensation in the back of the right knee,
somewhere in the upper calf area. Also, after playing basketball, i feel a discomfort in the front of the leg, in the area right below the knee. Somehow feels like the knee isn’t in its natural position, thus stressing the tendons around the tibia bone. The burn in the back of the knee accompanies this sensation.

I have done some searching and found it might be due to hyperextension(see attached photo-taken from Fix Your Own Knee Pain Without Drugs Or Surgery With Dr. Bookspan).

I still open to suggestions related to the cause of the discomfort and ways it can be alleviated.

I was thinking of using heating pads to improve the vascularization in the knee area.