For a moment it made me laugh, but in reality there is existence of Black Magic and Jinns. In your situation it more looks like that it may be due to presence of some Jinns. I have heard authentic stories just like yours where people get money more or less the way you get it. Now the important thing is what you do with it. I am not islamic scholar or peer/baba but I can advise you to sadqa all the amount of money you are finding in your house. These acts doesn't seem to be evil or bad in any manner but it is the right time that you should consult some authentic molvi etc. meanwhile u can listen to some of the lectures of Moulana Tariq Jamil. or you can find some useful "Rohani Tips" on
Ubqari-- The Center for Peace and Spirituality under amal-e-shufa tab.
One piece of advice donot just google the issue and trust on any website,coz there are many websites which are misleading and we trust and follow them easily, learned that from personal experience I myself was following a logic on bidaat which i googled and believed on a concept untill I found a reference from the original book of Sahi' Muslim and discussed the issue with a mufti sb. after that i never trust on any website, I do my research and then follow what Quarn says.