I think the house and you have some connections, and you are possibly feeling some of the history of the house.
Houses absorb energy from the people who have lived in them and if this is a old house I am sure it has a lot of echos and vibrations of both good and bad memories in it's walls.
These may not be heard on a conscious level but may be absorbed by your mind and body at a very muted level.. like the very low sounds that only elephants can hear. The sounds can also be very mixed and chaotic which would make your mind spend time and effort to try to figure out but it is so scrambled it really is a cacophony of sound but it is there and keeping you aroused all the time you are in the house.
Even when trying to sleep.
If you can sage the whole house it might help, or it might not make any difference, because I do not feel this is like a ghost in the house and sage is used for cleansing and removing spirits. These are not spirits.
You might try some classical music, softly in the background and see if that distracts your body and mind into not listening to the house's memories.
But maybe just knowing that these are nothing more than fragments of energy left behind by people who lived there and left an energy imprint behind, at very happy times such as a birthday, or christmas, and sad time such as a death in the family might be enough for you to relax and stop trying to make sense of the sounds you cannot really hear.