It can be hard, when people are struggling through classes, for them to hear that others are doing well. Not as a conscious thing where they hate you for your success or anything, it can just make them feel a little bit worse about themselves than they already might, triggers some imposter syndrome, all of that. My agreement with my friends in my class was always that we would say if we were ok or happy with how a test turned out, or not, and not talk about specifics. If I needed or wanted to share specifics I'd chat with non-vet student friends or family members. I'd even sometimes be careful here because even though we're at different schools, there are always people struggling and there can be similar internalized reactions as when you share grades with classmates. I think the way you did it here was perfect - saying you're happy with where you're at is always a little kinder than straight up posting your grades, imo.
Just a little perspective of where others may be coming from, and certainly not to say that you shouldn't be extremely proud of your accomplishments. Glad to hear that things are going well for you 🙂