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 ...
Possible causes of burning feet: 1  Alcohol use disorder. 2  Athleteâs foot. 3  Charcot-Marie-Tooth disease (a group of hereditary disorders that affects the nerves in your arms and legs) 4  Chemotherapy. Chronic kidney disease.  Complex regional pain syndrome (chronic pain due to a dysfunctional nervous system)