I have a few pairs of Skechers because they are comfy and, I thought, supportive, Sunnyoutlook.
However, when I saw the podiatrist she thought a couple of pairs I bought could be too soft to be supportive. Her advice was, for a really supportive trainer, you must not be able to bend it far, ie bend the toe inwards towards the heel- it should not have too much give.
I do have two pairs of Skechers which are not 'bendy' and I use them for walking but do wear the softer ones around the house.
I also have another pair of Meindl trainers but find them very unyielding as if they need to be broken in.
However, I do have very difficult feet.
Is it sharp pain in the Achilles tendon area or under the heel eg plantar fasciitis?
It's not easy to get an appointment with GP or podiatrist at the moment but perhaps you could phone for advice if the pain doesn't go.