Micro aggression at work?

I have been getting some negative vibes from colleagues since October 7. It comes from people who work in offices in the western provinces, where there are no Jews. Small things, like not thanking me when I have obviously gone out of my way to help them. A biting comment when they disagree with something I’ve said. Not acknowledging that one of my ideas is good. Giving credit to someone else for something I did. It is starting to really bother me, and I can’t help but think it is antisemitism. I am one of the only Jews on this cross-country team. Anyone else experiencing something similar? Is it in my head? I didn’t feel this before October 7.