Annoying People

I have a friend who just gave birth not too long ago. She seems to always make these little quips at me. She saw me last week using my maternity belt. I am small but that doesn't change that every pregnancy is different and my daughter likes to stick into my ribs and back on my left side so having something to support my back helps relieve some of the pain. I honestly couldn't even make it through a shift at work because I would be standing the entire time. Then i have people who look at me weird because I will sit down in a roller chair to do my job (we stand). You guys aren't in my shoes, you have no idea how much pain my feet, back, and sides are in so why does everyone think they can judge me? They'll make stupid little jokes like, 'I'm surprised you're not sitting down. Oh it must be because the boss isn't here.' Ps I have been doing this for the last three weeks and I'm currently 29+2