C-section incision

So, I was changing my daughter's diaper in our bed when she kicked and hit my c-section area and it was painful that I yell. My husband heard me and said, "Jeez. It's been four months." Acting like he thought I was overreacting. It pissed me off because it was really painful when being hit or something. And honestly, till now I can still feel numbness in my incision area from time to time.