lowering cholesterol naturally

My cholesterol is about 10-20 points too high. So far the dr isn't doing anything to lower it, but I feel I should start lowering it naturally. However there are a few problems. (1) I am gluten free--possible celiac. I don't know if gluten free snacks can raise cholesterol or not. (2) I also have endometriosis on my intestines. both my primary and my ob/gyn have told me not to eat raw fruits or veggies. The fiber is too harsh for me. But I have no problems with my stools anyway. So how can I lower my cholesterol since I cannot eat raw fruits or veggies?
I do exercise. My office job usually requires a lot of walking and/or stairs and I also do about 20 mins walking at home. I do use an asthma inhaler and take other allergy prescription drugs-Nasonex and Singulair.