Using insulin would not cause your feet to swell - at least I've never heard or read anything to that effect.
Poor circulation, dehydration, heart problems, medicinal side effect, and many more reasons could cause the swelling. With all you've got going on, me, you might want to call your doc.
- Phishbowl (Type 1 since Jan'05 - Levemir, NovoRapid)
"What's Not Measured Is Not Managed"
"It is impossible for a man to learn what he thinks he already knows"-Epictetus