I begin working for UPS sunrise crew in September 2022. I have completed my probationary period and am now a regular employee. I got in right before they started hiring their seasonal employees. I started out in the small sort area and about three weeks into my employment they moved me to bag the surepost small sort packages for the post office. I made management aware at that time that the repetitive heavy lifting, twisting and bending agitated my back injury. Mind you at this time I was still within my probationary period. Management spoke with me about the situation and moved me back to small sort area to accommodate my issue without requiring me to get a release from the doctor. I continued to work in this area up until a few days ago when another employee who had an issue with me, complained her wrist was hurting. This same employee was moved a minimum of at least 5 times to try to accommodate her requests. She complained at every location she was sent only to be placed back in the small sort area. She beforehand had requested to be moved to another area and also management felt it was best. This lady in particular, kept targeting me and making rude remarks towards me because management had me scanning and she made it clear that she wanted to scan. She was hired one week before me. So when she asked to move to another location, management seen it best to do so to split us up but moved her back trying to accommodate her after failing the previous 5 times they had already moved her. So one morning they asked me to switch with her to give her wrist a break because she complained to them that it was hurting. I agreed and switched places with her as she normally was the flipper for the small sort packages for sure post. As we began the shift I began to flip packages and another coworker told me I was moving too fast and that the lady had a hurt wrist. After working for at least 20 minutes and watching the way the lady moved her wrist with restriction I realized she was full of bull so my response to my co-worker was that I wasnt there to babysit and that she wasn't hurt. My coworker got mad, threw down her packages and went to management. Management came over and I repeated to management what was said as I continued to work. They moved us around and told everyone to mind their own person and do their job. Before the shift was up I ended up switching back to flipping where there were no more issues even with me flipping at the same normal speed that I work before my co-worker had a fit. At the end of the shift management told me that they were going to move me and the employee with the hurt wrist to another are to discontinue the issues within the small sort area. This did not happen. They allowed her to stay in the area and took me from the area where management had beforehand placed me to accommodate my back injury and sent me to preload trucks. I complained to management and the union about the issue and asked to file a grievance. All hell broke loose. Management was forcing me to work in pain under undue hardship and basically forcing me to quit because they wanted to accommodate one without honoring my accommodation he had taken me from. On Monday 12/5/22 my alarm didn't go off and I woke up late. I immediately called the boss and told him what happened and asked if I could still come in and he told me no they didnt have much work that day and that he would see me the next day. When I arrived at work this morning, management walked up with the union rep and said 1st that he was going to write me up for no call no show and I told him I called and that he told me not to come in. He further went on to say that if I didn't call in before the shift that it is still counted as a no call no show. Incidents happen where sometimes this is not possible as I was sleep and my alarm did not wake me so it was not likely to happen in this manner. I still called around 3AM while the shift was still workable. Secondly, he said that I would not be allowed to work anymore until I get a release from the doctor which previously wasnt requested. I explained the unfairness of it all and asked for his request to be put in black and white to request this release from a doctor and not being able to work until I do so. He denied giving me any type of paperwork or form to turn in to the doctor. The other employee was not required to be released from the doctor and I feel that his is Discrimination and I am now trying to be forced out of a job. What do you think? Please help.