You don't want it to be serious, but you also might be right that it isn't. I'd keep going light but regular awhile and keep evaluating... When they can't really communicate clearly, and the symptom is as vague as this, it's hard to know if you are over or under reacting... I know I've been there.
OK. I think I will cut back to between 30-45 mintues, I really only meant to be out an hour. But I'm not use to just walking and didn't judge the distance good.
Becky