Strange feeling inside my head

Hi
I moved to a large brick apartment buildings dating from the early 20th century in Boston in July from a regular dorm room. It's a split bedroom, which is pretty much two rooms with no living rooms, a bathroom, and a kitchen. One room's window is facing the street and the other room's window is towards the center of the building, where the air is nearly stagnant. So pretty much you can get a good ventilation only in the first room. The stove is an old kind where two little fires are always lit 24/7.

I have my reason to describe the place I live in.

Anyways, I have been having a really strange feeling like on top of my brain. It felt cold, but not painful. It just goes on and off.
I first thought this might be due to the stress. Now that I think of it, this can't be possible because last year I was as stressed as I have been lately, but never had this kind of weird sensation.

So I am thinking there might be problem with air quality indoor.
Or being that this buildings is old, I am getting some kind of tiny gas leakage.. or being exposed to asbestosis or anything..

I am kinf of feaking out. Please I would very much appreciate your comments. (or if any of you had this kind of sensation before)

Thank you!