where did baby go?

At this time last week, this same thing happened. My belly feels empty, sort of flabby and flat. I also feel few movements. So, last week I rushed to the Dr. for a NST, and I measured small too. (2 days later I measured back on track). I really wonder just where this baby is going, or what position he/she is in. After all this time of feeling so full and the movements in the same spots this is such a weird sensation. Last week, this lasted for 2 days only. Today, I do feel a bit of pressure on my bum, so maybe baby is dropping down a bit. Hmmm. baffled. I'll try not to freak about not feeling so many movements.