If my baby's feet are pointing upwards, why do I feel movement in my lower abdomen? I'm 19 weeks.?

I feel lots of movement in the lower abdomen, but feel nothing up high where the feet should be.
I had an ultrasound where they said the head was down and the feet were up. He was adorable.
Oh… and for those of you who think I'm ignorant. Pardon, this is my first child. I just assumed that a child's arms wouldn't be as strong as his legs and it is in adults. I'm not 16 or anything… I'm almost 30. Please stop being condescending.