does my friend mean harm or is this a harmless comment?

one friend that I met a month ago( let's say her name is anna), brought a childhood friend to our membership meeting. I introduced myself and was really friendly to her childhood friend. after we parted ways, I overhear parts of a convo between anna and her childhood friend talking about me as I am standing nearby. anna said that I sway from side to side when I am nervous talking to people. I wasn't sure of the full context of their convo but when a person talks about you like this and analyzes you to someone else, do they mean harm or was this a harmless comment? I have expressed that I am shy to anna before, but the truth is I have a high degree of social anxiety disorder and am very insecure about it. and anna is always friendly to me. but I have low self esteem because of verbal abuse and psychological abuse from my parents in my childhood up until now and can't tell the difference.