First of all to those people whos babies don't sleep, I am not showing off or anything else I just wanted to know if there is an underlying issue here. 
My 10 month old dd sleeps through from 6.30pm until 7am. She used to have about 4 x 45 mins sleeps during the day. She now has 2x 1.5 hour sleeps and sometimes more. When she gets up in the morning, within an hour or so she looks exhausted, I don't put her straight down to sleep but I try and change her environment etc. She is commando crawling so moving around a fair bit but not massively. I would have thought by 10 months she would have dropped some of her daytime naps and be awake for longer. Basically she still won't stay awake longer that 2-3 hours at a time. Is this normal or should I be speaking to my GP.
I know I am lucky, but I don't want to sit here smug if there's an issue.
Also, it causes issues when going out because I have to time her naps as otherwise she will be really grumpy and tired when we go out. Shopping trips are often cut short as she is tired and grumpy.
For info, she eats well and is a good weight (91st centile).
TIA