As a quick reminder, the different categories of insulin are: 1  Rapid-acting. 2  Short-acting (regular). 3  Intermediate-acting. 4  Long-acting.
This condition may also affect people with kidney problems, as a loss of protein in the urine can cause feet to swell. Another cause of foot swelling is inactivity ... in a car or riding on an airplane all day, your leg muscles aren't working as much, and fluid will pool in your feet and legs ...
Plantar Fasciitis. Plantar fasciitis is considered the most common cause of foot pain. The plantar fascia, the ligament that runs along the sole of the foot, becomes inflamed, causing pain. Sportsmen and women, those who have to stand for long hours and those who are overweight are especially prone to plantar fasciitis.