N.S.
My second daughter was the same way. Never a great sleeper and bedtime was always a project (she had colic for 6 months!) We also would sit in the glider to try rocking her to sleep also and all of a sudden she didn't want to be rocked to sleep and would throw a fit just like you are decribing. One night we just put her down in her crib and found out that is all she wanted. There were a few night where she would cry it out, but each night got less and less. The first night was the worst but now, bedtime is a breeze. I would try just putting her in her crib and see if that's the problem. There have been a few times where my husband would just sit in the glider in her room until she fell asleep and she seemed to like that also. Good luck!