Feeling cold feet in summer but not cold to touch may be due to the deficiency of yang qi in the lower limbs, which cannot warm the feet, so the feet are cold. Causes of lower limb yang qi deficiency are the whole body yang qi insufficiency, the performance of the usual fear of cold, cold hands and feet, waist and knee cold pain, urine clear long, nocturnal urination, etc., you can use the Jin Gui Kidney qi pill to regulate.
It may also be due to stagnation of qi and blood caused by liver qi stagnation, where qi and blood cannot circulate to the limbs, and cause lower limb yang qi deficiency leading to cold feet. This is usually accompanied by symptoms such as swelling and pain in the chest and ribs, and easy sighing.
Cold feet due to yang deficiency are usually cold to the touch, but not to the touch. If cold feet are caused by blood deficiency, they are usually not only cold to the touch but also to the touch.
If you feel unwell, you should consult a doctor in time and be treated with traditional Chinese medicines after diagnosis, and do not use medicines on your own to avoid adverse consequences.