Is this normal or is it my experience only?

Is this normal or is it my experience only? I often dont get acknowledged by people who knows i have stammering idk thy dont value my words and thy avoid me, like wht did i do wrong idk am all alone now, i dont know if thia is the reason why the girl i lived left me too, idk gang maybe iam just overthinking, people dont want to be around me i guess or maybe i am the problem