snowbee, I'm 15 weeks and small and still not feeling anything with my first. I can hear a lot of what sounds like movement when I listen to the hb, but that's it. I'm hoping maybe that I'll get some flutter next week, but I'm not really expecting to feel anything until 18 weeks, which is what I think is more realistic from what I read. I really can't wait to feel movements.
Betty, sorry, I can't help there. I've had some pains, but they are fleeting. When they do persist, it's a constipation/gas pain that I'm all too familiar with. I hope everything is okay and that the pain subsides.
And happy 16 weeks lisey!