Okay ladies i have a question. Well maybe more of a should i be concerned.

My daughter was born May 5th via c section.
So when we were in the hospital her head was very really soft and kind of like a bump. Drs said she was fine so did the nurses. Well when we get released her head becomes more hard i guess thats the way to put it? So then i make an appointment for her 3days after being released so we go dr touches her head says nothing is wronf with it but i notice before i even went she has like a bump like in the back of her head on the right side.. It kind of worries me but the Dr at her check up said nothing about it. The more i look at it and feel it it starts to scare me abit because i honestly dont know if its normal or not/; my 2 other daughters never had it so idk what to think i go to the dr for her on Wednesday but should i go get it checked out before then?