Worried

I’ve been having decreased movements the last week, I’ve been to the hospital two times because I used to feel my baby move A LOT. He moved every time I’d eat/drink something sweet or cold now he barely moves at all. I go to the hospital and they hook me up and don’t see an acceleration of his heartbeat so they turn me over and still nothing!! They tell me he’s running out of room which I know isn’t true!!! You don’t go from 10-20 movements every two hours to literally 2 very light movements ALL DAY!!!! I’m 36+2 and they won’t do anything!! I’ve been to another hospital and they were concerned so they sent me back to my hospital which has the highest level nicu in my state and they still did nothing. Has anyone went through this??