glitching

so earlier i changed my skin and the glitch started to happen i changed it and the i went to go check it on the nexus server and then it was flashing and then i got a bit confused i uninstalled it and then reinstalled it then it was the same so i reset the skin and its the same so i cant play on minecraft because of that now please fix it asp and i think its only me who its happening to me
username- Pro_Jectx03
please fix it i want to record some videos on my YouTube channel
sorry i cant gt a picture