You most likely have a strain of the long plantar ligament. Wearing a heel cushion and/or anti-pronatory insoles should help. You could also rub in some anti-inflammatory gel/cream like ibuprofen into the painful places. This condition resolves over time, but may last up to a few months.

I have identical symptoms. My doctor thinks it is due to lack of oestrogen - having come off HRT. He says it will go away with time. I hope he's right!

When I put my feet to the floor when I first get out of bed or after sitting for a while my feet and legs are stiff and ach until I get going

You most likely have a strain of the long plantar ligament. Wearing a heel cushion and/or anti-pronatory insoles should help. You could also rub in some anti-inflammatory gel/cream like ibuprofen into the painful places. This condition resolves over time, but may last up to a few months.