The baby probably has dropped, and with subsequent pregnancies, it usually happens quite close to labour (or even in labour, while first timers drop weeks before). Perhaps you are going to go into labour in the next few days or so?
About the movements... Are you sure those feelings "like at the beginning of my pregnancy" are movements or are they more like uterus twinges (that in the beginning of pregnancy are super mild cramps evidencing the growing uterus)? Perhaps, if they are more like super mild cramps, you are experiencing pre-labour, the tuning up that the uterus does to get ready for labour.
Also, remember that by now, baby is so big that there is very little room to move about inside you. It is very common for baby's movements to dramatically reduce at the very end of pregnancy. What you'll feel are slow, ballet-like movements as the baby attempts to stretch it's limbs out or flexes it's spine. Gone are the days of sudden swift kicks and punches - there just isn't the room to do it anymore!
When you go to the doc, you may discover that you have begun dilation and effacement.
Good luck! Make sure you have your bags packed and all your arrangements made just in case labour is not far away!