You're saying these symptoms affect the whole family when you're at home, but not when you're away from the house? Perhaps the air quality is poor, maybe you need more ventilation. Does enough light get into the house? Sometimes insufficient sunlight can make you feel that way as well. I would personally try getting more exercise, more sunlight, and reading more quran in the house, as well as perhaps sprucing it up with a coat of fresh paint or something, maybe rearrange some furniture. Just my two cents.