Need advice please 😩

I’m 25 weeks and 1 day today. I’ve noticed the past two days, the baby hasn’t been moving nearly as much. I know you’re “not supposed to worry about it” until 28 weeks, but it’s seems weirdly slower. Is this actually normal? I had a snack a while ago and still barely anything. Starting to get very worried.

Had a doc appointment earlier today (regular monthly appointment) and I mentioned it to my doctor and she didn’t seem concerned. His HR was around 145bpm. But this whole very little movement thing is really scaring me:(