I just don't feel pregnant anymore

Let's start off by saying I'm 24 weeks+4 with an anterior placenta. I have constant back pain and now I have this pain in my lower stomach constantly. My Dr suggested since I have an anterior placenta not to worry if I get 4 movements in 1 hour atleast 3 times a day. Well I do have movements but they seem so little, and in the back of my mind I have this gut renching feeling. Is it just me or should I call my Dr?

Also would like to add that about a week ago I had this day where I couldn't do anything. My normal everyday tasks I couldn't achieve at all because my body felt like it was shut down on sleep mode or something. I brushed it off being a bad day of depression.