Don't get caught up in it, however. Instead, redirect your energies into problem solving. Try to understand what event or remark created this response in you, then address that in a constructive way. Learn to communicate more effectively and use self disclosure to encourage others to communicate with you. It's not uncommon for dedicated professionals to approach the precipice of burn-out.
Many professionals are passionate about their mission and put in long, hard hours to accomplish it.
Generally, accomplishment brings praise and rewards. Often that is not the case, however. It is easy to cross an invisible line where achievement, riches and glory are on one side, declining health, frustration and defeat on the other. The fact is, after a certain point, one loses perspective and mental sharpness. Tasks take longer when you're over-tired.