Definitely call the day unit if your not feeling any movement. Don’t wait 3-4 days that’s rubbish. They would rather you rang them and got checked than leave it and something bad happens. I would call them more than 111 as they know more of what they’re doing
If you’re worried about movement, call the day unit! They were amazing when I hadn’t felt my little girl move all day x
Hopefully you’ve called them by now, but if not, again encouraging you to do so! I was too nervous the first time but my husband called for me with me sitting there too and they were amazing. 111 are very wrong about that and if you can bear it you should give them feedback about this as it’s bad advice. Always call up for reduced movements before you go to sleep for the night.