Does my baby ever sleep anymore?

My little NicoAnn has always been an amazing sleeper. Since she was really young, like at around 2 weeks, she started sleeping through the night. No joke. I would even try to wake her up for feedings, and she would just sleep and sleep. I don't know how I got so lucky with that, but I thank God for that everyday.
Now when it comes to napping.... that's an entirely different story. My Nico didn't think much of naps when she was really young unless she was sleeping in Mommy's arms. Which I didn't mind so much really at first. But then, it was getting to the point that I couldn't do anything at all unless I was holding her. She didn't mind being in a baby carrier, but that still didn't help when I had to run to the store or run to Spokane to get my two older girls. I knew with all things, that it would pass. And it did almost as fast as it started. She then became a super sleeping baby. "AAAAAAHHHHH" as angels would sing. It was just that great.
Then something changed. I can't say I know exactly what it is. Its frustrating for me to not know what is going on with my own baby. Around the second week of September, Nico all of a sudden decided she didn't want to take naps anymore. I kept wondering, "What happened to my super sleeping baby?" I didn't change how I put her down for a nap. I then I had very cranky Nico on my hands. I thought maybe its teething, or maybe she's just not tired. I tried all of those, but either it worked or it didn't. Sigh.
This past week has gotten a little better though. I thought that maybe if I put her down for a nap a little later, maybe she will want to go to sleep. It works sometimes, and sometimes it doesn't. I'll lay my little angel down, and either she starts screaming, or else she stays asleep. I think that maybe, just maybe I'm starting to figure it out. She is now 7 months, and I know she is changing. She's becoming a mobile, drooling, grabbing machine. So, maybe she just doesn't want nap time at the same time anymore. I think I can handle that. She's only just telling me that "Mommy, I'm changing, and have different needs!" So I'm listening.
So, yes my Nico does sleep. It's getting better. I'm hoping that maybe, just maybe, there is a light at the end of the napping tunnel.