rucontent wrote:my leg will be pressed against my ankle when i feel the pain...thanks....
Sounds like one of two things, and I'm guessing simply based on this description: either you're sitting cross-legged on the cushion, or you're straddling the cushion in seiza.
The first one maximizes the distance from the floor to your knees, your ankles are forced to flex at a steep angle, with the ankle on the bottom taken extra pressure from a weighty leg. The second one can work, but most chair-people aren't used to the extreme flex of a good seiza posture; but this position doesn't necessarily add leg pressure, so I'll bet it's the first one you're doing.
So, try that second one: sit on the zafu in seiza (see below). Otherwise, perhaps try the Burmese posture:
Here, the cushion is used to comfortably set the angle of attack for the hips, and there is a soft pad underneath for the knees and ankles. You can shift around with this as a foundation and find something fairly comfortable. If your hips aren't able to accommodate the posture, or your find that it generates knee pain, sit cross-legged but put cushions underneath the knees to relieve pressure on the ankle. Others may have better advice on using a zafu (Zen folk tend to be quite adept with them) - I do seiza on a bench
. (Using a zafu, place it between the knees and mush it up to take all body pressure off of the ankles. Ensure there is NO knee pain.)
A stretching routine for the legs is also probably called for, if you're mostly used to sitting in chairs.