Ski, I am so sorry that this happened to you and that you are hurt. People don’t think before they speak and most forget that Hashem gave us both teeth and lips to guard our tongues. Just as you are struggling with your issue, many people are struggling with this issue.
Please do not allow other people to hurt you. Their opinions should mean nothing to you. As you said, they don’t know you, they don’t know your struggles or your relationship with your family, so their opinions don’t count. Just as they could care less what you think of them, please don’t care what they think of you. They are NOT people who count in your life. Brush it off and move on.
Having said that, I still want to say that EVERYTHING you said here is appropriate and should be heard loud and clear.