Trigger Warning Self Harm
I feel a bit silly posting this, but I would really appreciate some advice.
I went through a prolonged period of very poor mental health that started in my mid-late teens and went on well into my twenties. It was really rough for about a decade and one of my main coping mechanisms, throughout that time, was self harming, (specifically cutting). It was relatively severe to the point of needing stitches on many occasions. So I have been left with a lot of scarring on my forearm, thighs, and a few other random places. I am much, much better now. I haven't self-harmed in as long as I can remember (I'm now mid-thirties). But the scars are still there and will be for life.
The issue I have is that every so often, someone will notice the scars on my arm and ask about them. Now while it is not something I talk about very much at alI, I generally don't have an issue discussing it with people particularly, like if it somehow came up in conversation organically (e.g. generally discussing mental health) or talking about it with people who are already aware of my history... but when I am put on the spot and someone notices my scars I freeze every time. I can never bring myself to tell the truth in those circumstances. I generally tell a lie or just change the subject really abruptly somehow, but it's very obvious that I'm feeling awkward and it makes me feel awful and really hot and panicked when it happens. Granted it's rare that it happens, but when it does I just want the ground to open up and swallow me whole and I dwell on it for ages afterwards.
It happened with a newish friend the other day and this is what has made me post. She mistook them for burns and I made up something about hair straighteners and then changed the subject as quickly as possible. But I felt awful not telling the truth. I want to be able to move past this and just be honest, but I don't know how.
I know I could keep them covered up to avoid questions altogether, but I don't want to let my past control any aspects of my present life, and really want to be able to move on from this sense of shame and embarrassment I feel about this. Help!