Some people like to talk during a massage session, while others remain silent. If your massage therapist encourages you to talk or not talk, it is usually based on whether or not it seems to help let go of tension and getting in touch with oneself. Sometimes talking can be a way of unburdening oneself or opening up. Sometimes being silent can be a way of letting go of thoughts or concentrating. Breathing helps to facilitate relaxation.
People often stop or limit their breathe when they feel anxious or a sensitive area is massaged.
If you realize you are stopping your breathing, let yourself breathe. Tightening up, i.e., contracting or hardening your muscles during the massage is counterproductive. If you are able to, relax those muscles. Let your massage therapist know this is happening. They may need to adjust the massage technique being used.