Making a (Loss)??

(I can remember correctly)Before i won the uefa cup with my tottenham,i had a balance of 20+ million and making a loss of 6+ million. After i won the uefa cup, my balance went up to almost 50 million and i was making a profit of at least 15 million. So i decided to save and quit so i can play the next morning but when i loaded my game my balance went to 20+ million and i was making a loss of 10+ million. WTH??? is this a bug and have anyone experienced it before?? or did someone leeched my money?? and i haave updated my fm anyways.