i am kinda (and pardon the pun ahead!) feeling your pain lol! i too have started over the last 2 weeks to get dull yet consistent headaches. i do have an old shoulder injury though and am wondering if all the relaxin (or whatever hormone it is called!) is just jibbing up the muscles and they are not supporting my neck as well as they could IYKWIM? do you have any old injuries from ages ago that could be contributing?