Belly bands an being bigger...

So I just got a belly band my doctor told me it would be a good idea as I'm having horrible pains that make it hard to walk sometimes. Well I am a bigger women 200+ an I still haven't gotten the hard belly yet even at almost 25 weeks. I have a couple questions for bigger women that used them how did u make it comfortable so it wasn't smushing ur whole belly since I still don't have a hard belly it just makes it smush together. Also how often did u wear it I had it on for not even 20 mins an she already started kicking like crazy I felt like maybe it was crushing her in there. Also did u where it over or under ur cloths I just wanna wear it right an not hurt me or the baby. Anymore advice on wearing one would be greatly appreciated.