So my older sister who lives out of state has a Lab named Shamrock. She’s already had him a few years and we’ve gotten along really well! We’ve always had labs and they’re like big teddy bears to me, so i was very thrown off when he randomly mauled my arm this past December. it was very much out of no where and a pretty bad bite. Not just a nip, he really thrashed and tore open my arm, my sister had to pull him off as he wouldn’t stop. Ever since whenever she visits he always growls at me and i’m really like confused and sad because i’m like the biggest animal lover and idk what happened or why he hates me now

. Can dogs sense like a change in hormones or something? even then i’m kinda confused cuz i’m mtf so i feel like my hormones / scent would be changing in a less aggressive way (his previous owner was an abusive old man). He has no problems with my dad or brother, both are taller and extremely masculine, and no problem with my mom or sister who are both shorter than me. Transition wise i’ve had very good results I’d say i’m pretty much passing like 90% of the time. Has anyone else experienced anything like this since transitioning? Not sure if my appearance or scent / hormones could cause it? maybe he just hates me? He’s gone to training and my family all supervise and try to get him to be okay with me and he’s warmed up a bit, but just now growled and i hate it

He was never like this pre-transition