Can a space affect an empath?
I think I might be a little late to this, but I have had a similar experience in my home. Now I don't know how your home and family is, emotionally, but if they're like mine and don't along, your body can start reacting that way through association with negative events alone. I know that's been the case for me, and I tend to avoid my family, even though the only way to really solve the issue is spending time with my family, its horribly exhausting and I've given up because something happens and then everything falls apart again (My parents aren't happy with each other and that "energy" or anger and deep-rooted unhappiness has passed to the children, so everyone seems miserable, constant yelling and fighting).
If your family isn't anything like that, you could be picking up emotions from maybe a neighbor or neighboring family who are unhappy. In my experience, things usually stay to rooms, or specific objects, but I've never lived in an apartment to know if I can feel a different families state.
The last thing I could think of for you is maybe if you're comfortable, when you get home all the stressors from the day "hit" and really take their toll. If that's the case then I've heard grounding techniques work really well (they don't work for me unfortunately, but I still recommend trying them)
There are also physical elements like maybe mildew or something that you could look into, you'd likely be more sensitive to those things as well.
I will be honest, every family has some sort of issues, minor or major, but if that might be the cause for you and you're able to, I'd recommend finding a way to either helping the people you're closest too to calm down, or to find a way to just ease the situation the best you can. If it still continues, hold out til you can find a place of your own, some things are simply bigger than us. When people's ego's come into play, ambition and pride can stop any external factor from really helping, it'll take a personal change in individuals.
Best of luck to you!