I posted a thread like this not too long ago. I landed the same way and like you I was freaking out.

It made me feel better to lay down or take it easy and just make sure I could still feel my bubs kicking.

If you get any pain, bleeding, the baby stops moving or something just doesnt feel right (sometimes its intuition) then call the midwife.

I didn't call and everything is ok on this end but if you are really worried sometimes it is nice to hear it from a professional to put your mind at ease