Is it normal that i eat salt straight out of the salt shaker?

I’m kind of addicted to eating salt by itself. Like I will literally pour salt on to my hand and lick it off. I used to do this all the time when I was a kid, then when I got a bit older I realized how disgusting it was and stopped. But a few weeks ago, I was in McDonald’s with one of my friends and (as a joke) they poured a whole packet of salt onto one chip and ate it. Then they dared me to do the same and I did, but it tasted really good. I almost always use salt in restaurants but they still don’t always taste salty enough, but this extremely salty chip tasted amazing to me. Then, after that I started doing it again, shaking salt into my hand and eating it by itself. I will sometimes do this two or three times. It doesn’t really bother me and it’s not exactly a serious addiction but I know that if I carry on doing it it will probably cause serious health problems. I just want to know if anyone else does this, and if anyone knows the reason behind it.