sealife, it is 100% normal for you to want a measure of independence from your BF. If you didn't want any autonomy from him, I'd question the healthfulness of the relationship. One of my faaaaaaavorite communication theories says that in all relationships, we have competing desires for closeness/separateness, openness/closedness, conventionality/uniqueness, etc. Neither desire is bad or threatens the relationship, and it's natural to alternate between wanting one and wanting the other. The biggest problem is probably when you decide you only want to be close, and that if you ever don't feel close to him, the relationship must be going badly.
Most relationships go through cycles. They're not linear, with you both getting closer and closer and feeling more attached all the time. (Despite what Hollywood may tell you is the perfect relationship.)
Q: How many poets does it take to change a light bulb? A: 1001...one to change the bulb, 1000 to say it's already been done.