Sheetz review: I’m a worker

So I work at sheetz in Middletown road in hummlestown pa. I have current just started like a few months ago and have had some issues with a manager named Tina. She has been disrespectful getting mad at customers for things they do an swearing in front of workers. She does not do this a lot. But yesterday on Thursday was April 29th she decided to send me home and had attitude w me that day. She was calling me lazy for sitting down because my feet are swollen from being pregnant. Mind you I sat down after I had done the list of work that needed to be done on register and all because 1 customer came up and I was not quick enough she sent me home. I find it cruel and disrespectful for someone to be like that. I find it very disrespectful to treat someone who is pregnant like that. I’m 18 so I’m not guranteed a break but I should still have the right to sit down for a few min until a new customer comes up.