Since your selected "often" this is a problem area for you as it appears you're very apprehensive about mentioning new ideas to others. This is not uncommon, but it hurts your creative achievement. New ideas often don't make sense in the current order of things. Your self-consciousness keeps you in the realm of "what is" and prevents you from exploring "what might be better."
Sticking your neck out with a new idea means taking a risk, but without some risk there are few advancements. We've been trained since our early years to "make sense" and to "not look foolish." Logic, rational thinking and linear thought have been drilled into us. Even the standard IQ test mostly measures convergent thinking. But the greatest thinkers of all time were often divergent thinkers. New ideas often "don't make sense" and might sound "silly" or "wrong." Often, "crazy" ideas are a lot closer to "brilliant" than the same old tired "this is the way it is" ideas.