Hello and welcome to Just Answer. Puppies need to eat every two hours, the fact that she is hiding them but not feeding them may indicate she is ill. The pup may be crying because of hunger and it is not easy to bottle feed puppies. Touching them may not be what is exciting the mom but if you are in a traffic area of the home or if there are other dogs in the home she may try to keep them safe from that. ARe the pups warm enough? (You said she is putting them under blankets )
I am not sure if chat is working, but I would not hesitate to get the mother checked by your vet and get started bottle feeding if they are not eating from the mother
Do you have a scale at home?Have you seen the two smallest nursing at all?