I don't know if thats classified as anxiety.
Sexual intercource is a deep thing and it does raise the heart rate. Perhaps he is going too fast? Having rough intervals can cause you to loose your breath. He should try toneing it down a little and see if that helps.
My guy has headaches and emotional breakdowns with sex!
My guy has severe panic attacks, cries, and complains of excruciating headaches right after he climaxes. I'm his first person he's been intimate with in 15 yrs becuz he said it's always been difficult. He says he is only trying to make me happy but much of the time he instigates it and gets an errection in the beginning of the act but he won't try to satisfy me other ways either. I heard he either has a biochemical problem or is gay. What do you think?