saywhatagain
In my experience, you absolutely can grow back your tooth enamel, regardless of what dentists may try to tell you. I think the reason dentists say that you can't grow back your tooth enamel is because they haven't figured out any external means to replenish tooth enamel, they can only help to re-mineralize the tooth enamel. The complex structure of the tooth enamel can only be created by your own body from the inside out. A healthy person can and does rebuild tooth enamel on a daily basis. I will tell you from my personal experience how I am pretty certain that your body can re-build tooth enamel. The first experience was when I did something really dumb when I was younger. I decided I was going to make my own electrolyte drink (like a homemade Gatorade). I added some salt and potassium citrate to my drinking water and was drinking this for a while. I started to notice that my teeth were becoming very translucent and were also becoming very sensitive. I finally connected this to the potassium citrate, the acid in this had basically almost eroded my teeth away, duh! But as soon as I stopped drinking this, the color in my teeth came back and the sensitivity also went away, through no effort of my own.
The second experience I had was more recently 3 years ago, I was traveling in India and had cerebral malaria, my teeth were the least of my worries as I was near death at one point, had acute kidney failure was on dialysis and felt like I had brain damage for much of my hospital stay of 3 weeks. Through all of this, I still was aware of something very strange that was going on with my teeth. They seemed like they had almost melted away and become soft and very strange feeling. When I finally got up the strength to try to brush them, the toothpaste kind of stuck to my teeth and wouldn't come off and they looked and felt so strange. I was convinced if I survived it that they would all fall out. But amazingly after I recovered my teeth also completely recovered and are completely normal today and I still don't have one cavity.
As you wrote, you don't know for certain that you really even did any real damage. Not brushing your teeth for a few weeks is not the end of the world and not guaranteed to do any certain damage. If you did any serious damage, you would most likely feel it. You would feel pain and sensitivity. And even if you did some damage, your body can absolutely rebuild and repair damage to the tooth enamel, as long as your body is in a state of health. It is when our body becomes unhealthy that it is unable to rebuild tooth enamel and cavities begin to develop.
It is obvious to me that what really needs healing is something more deep inside of you. If you want to talk about what happened to you and how to heal from your trauma, feel free to send me a private message.