Why am I always cold?

I always feel cold and I find it hard to get warm. This started at the beginning of fall. By October I was wearing all of my usual winter clothes when I was going outside, I got a personal space heater for my bed room and desk, and I started sleeping with multiple blankets. As the weather got colder I couldn’t even stay warm in my winter clothes, so I bought the warmest winter gear I could find. Now I’m fine outside as long as I’m completely bundled up, but it takes me forever to get dressed and I can barely move because of all my bulky layers. Does anyone know why I suddenly got like this?

In highschool I had the same problem. Wearing sweatshirts in the middle of summer in Texas and I'm still cold. I was diagnosed with anemia. And I wouldn't really want to eat food I craved eating shaved ice. Weird ass stuff so yeah the doctor put me on iron pills and it seemed to help.

Get some bloodwork 👌

Eat more greens.. spinach and kale regularly helped me.

Sometimes tyroid dysfunction. Usually, though, accompanied by other signs, like apathy, tiredness, weight gain.