Preheat oven to 375 F. Line 9 muffin tins with cups and non-stick cooking spray. Mix cream cheese and cinnamon into a small bowl. Mix eggs, oil and cream in a separate bowl. Add protein powder, baking power and sugar (or sweetener) into the cream mixture, stirring thoroughly. Combine both mixtures along with the berries as you pour into the muffin tins. Bake for 15-20 minutes or until the muffins begin to brown at the top.