Do I have a thyroid condition? Here are some of my symptoms.?

I crave salt, and I never crave sugar – And whenever I eat, mostly, sugar I get very sick and nausea. Whenever I get a stomach ache, I feel salt is the solution to the problem – Because it absorbs the excess acid and liquid in my stomach which helps with the stomach ache. I’m always hot. In particular, it’s like I always have a fever – Because my neck is so hot all the time even when it’s really cold outside. I have dry skin, and my hair takes such a long time to get greasy. I look really young for my age – And I never really had a growth spirt. I’ve only 10/11 inches taller than I was in the 2nd grade. I have white stretchmarks. I’m so depressed all the time – And so on…

What’s wrong with me? Why am I so weird? Do I have a thyroid condition? And if so, which one? Hypothyroidism or hyperthyroidism?