A: Headaches often arise from not breathing or tightening muscles during lovemaking. Try breathing and letting your spine move in a fluid way during lovemaking -- think snakes undulating sensuously as you peak toward orgasm and relax at the moment of most intense pleasure rather than tightening and grasping for more. More pleasure awaits in letting go than grasping and tightening but this takes a little time to realize, so be patient.