So since a couple weeks a trans"woman" has been using the women's changing room at my local gym, he is clearly a man and I feel completely uncomfortable in his presence and refuse to change when he is in, a couple friends think I'm overreacting but I see and feel him starring at me and my friends and it makes me not want to turn my back to him, the gym offers one person changing rooms as well. I need some encouragement to bring it up to the gym management, my friends have been a lot less disturbed and called me a transphobe so I've been feeling like I shouldn't say anything.

Sorry if I'm posting in the wrong place I'm still figuring things out here