I'm 18.5 weeks and the past few days I've suddenly felt a lot of action going on in my lower tummy area. It doesn't really feel like I've seen people describe, no butterflies or tickling. More like big bubbled and waves.. at first thought maybe gas and now can clearly recognize it as something different and it's happening pretty frequently. The crazy thing is when it happens, I can usually feel it with my hand on the outside... my husband felt it too last night. Was anyone else able to feel from the outside this early or am I crazy? I was so frustrated I hadn't felt anything and now it's like zero to 100 all of a sudden! I'm also very thin (too thin but having trouble gaining weight still, ugh).. so wonder of that contributes to what I can feel?