Deep squat test! Can you do it?
Stand up tall, feet hip width apart, then try and squat down as far as you can go. Your bottom should just about hit the floor. Toes pointing forward...
Are your heels coming off of the ground? Stretch your calves, try again. Any difference?
Not everyone will be able to do this, but it's good to practice. This position helps my lower back daily.
I sit here for 60-90 seconds about 10 times each day. The little things make big differences. Results are not immediate.
If you are unable to perform this, try rolling up a towel or placing something under your heels to aid your descent.