Is it normal that i am addicted to salt?

I think I've been addicted to salt for as long as I remember. I think it's the taste. I've always been more of a savoury person. Although I do like sweet stuff, sugar doesn't have the same effect and it's just a bit blergh on its own. I'll put salt on every meal - it's like I can't taste the food unless I add salt to it - it makes the flabours come alive and it goes well with everything. Every meal, no matter what it is, and I add like this much salt - it just makes everything taste so much better! I've always had pretty bad taste buds I guess.
When I was 8 years old, I started to eat it by itself as well as with food. And I still do. What I'll do, is I'll take some of those little sachets of salt you get from Mcdonald's or the chip shop. I'll nick some of those, then I'll take the sachet and open it up. Then I'll pour a little salt onto my hand, dip my finger into it, and lick the salt off my finger. It's so calming. I'll just enjoy the taste of it, and let it dissolve in my mouth, and then do it again. I'll do it until I get that tingly feeling in the back of my throat. That's when I've had enough. But about half an hour later, I'll want more salt. My friends saw me doing it one time while I was out with them at a cafe. They asked, "why are you eating the salt?" And I couldn' explain it to them. So now I just do it when I'm on my own. I sometimes get withdrawal symptoms when I don't get my salt fix, such as irritability and headache, as well as loss of focus. I sometimes get through, like 3 or 4 sachets a day. My favourite type of salt, is the type you get in the sachets and grinders because of their mild pure taste, as well as natural sea salt. However, the more bleached and refined salt is a little less tolerable.
When I was 14, I was actually anorexic and that might have had something to do with it. When I was consuming so much salt, I was rarely hungry, so wouldn't eat. And even when I did eat, I added salt to it anyway. My body can handle more salt than average, but up until recently I'd been feeling healthy.
Is it normal to be so addicted to salt? I'd always considered it normal for me and never really thought much of it, but now I worry that it's not healthy and bad for my body. However, I know I can't cut down on salt because food is unbearable without it.