3. Wearing my bike shoes around campus all day. They are Sidi mountain shoes with eggbeater cleats, so I'm not waddling as in road shoes. But they are stiff, so I'm walking around most of the day using my foot/ankly differently than I would in normal shoes.
This is probably the issue... ill fitting shoes or shoes with little support, walking or running, rather than the biking.

This is what shin splints "feel" like: Imagine one of those bamboo back scratchers, inside your leg, extending from knee to ankle on the inside. Now imagine bending that until it cracks and the edges are popped. Now imagine how it would feel to be that back scratcher.

This is not technically what happens but it's how it feels.

They say shin splints are forever but, mine have greatly reduced since HS track.

Bring a pair of shoes to leave at campus that have good support, like cross-trainers or walking shoes.