Should I be worried? 😥

Ruth

So my 2nd baby is 10 months old and I have noticed that she stares blankly into space for 5-10 seconds. It happens a lot and I really dont like it at all because it worries me to death. She makes great eye contacting, is a happy baby, plays, laughs, eats well, healthy overall but she does do that throughout the whole day. Sometimes she looks over our shoulder blankly until we tap her or just rattle a toy or call her name. I dont know if I'm overreacting or maybe it's something I should be concerned about. I spoke to her pediatrician last month but she said it's something that'll go away but if I'm really concerned about it to bring her back in to get checked out. I dont know what to do. Should I let it be or should I take her in to get checked again?