<s>[INST] When someone talks about the physical aspects of childbirth, I experience very unusual symptoms. I start to feel faint, get ringing in my ears, tunnel vision, and feel very warm and begin to sweat. Has only happened twice in my life, but both times occurred while I was listening to someone talking about the physical aspects of childbirth. Any ideas? [/INST] Hello, Welcome to Chat Doctor. Your above symptoms can occur anxiety and phobic conditions. You appear to have excessive anticipated anxiety regarding childbirth, which lead to such symptoms in your case during discussion about childbirth. In such cases treatment in form of medical education regarding process of childbirth process with relaxation exercises will help. Wishing you good health and all the best.www.99doctor.com </s>