Worried for no reason? Harper slept through the night last night-12 hours. She is 10 weeks old. She…

Worried for no reason?

Harper slept through the night last night-12 hours. She is 10 weeks old. She woke up, nursed like she was starving (understandably) stayed up for about an hour and a half and then went back to sleep and has been sleeping for the last 2 hours. She isn't feverish. Is breathing fine. I'm just nervous because she normally wakes up once or twice through the night and then only cat naps throughout the day. On a normal day she would have eaten 2 or 3 times by now. Could this be a growth spurt? Am I worrying for no reason?