We live in a time where more and more are into the occult with curses. Spell casting is a big thing now. These people for whatever reason will do this against you. When I blessed my house this feeling stopped years ago. Sometimes I skip a meal for a fast. Sometimes one meal only. The other day I did it on a long several mile walk praying for everyone. It was beautiful walk in Christ I may be redundant with knowledge of things you know but just examine yourself. He loves you so much. I start with anoint music when dry. I hope this helps you brother. Remember casting all your cares on The Lord. Let go let God!
http://www.youtube.com/watch?v=9aYecuDlDYM