Excellent advice. The only thing that I would add is to take it easy. It is possible, especially for your distance, to ride a leisurely pace to avoid sweating. This tactic simplifies things for the workplace. If you wish to get some exercise but are worried about potential offensive odors at the office save the workout for your ride home.

A fellow cycling commuter at my place of work also suffers seizures and is thus not allowed to drive. He has been riding through the winter with the rest of us and seems to be doing fine.

Welcome and best wishes.