Im 36 years old and had my tubes tied 12 years ago .. recently while my partner and I have intercourse he would have a brown discharge on his underwear after .. I am still getting my regular menses .. And I took 2 pregnancy tests and they were both negative .. I've recently started having sever headaches and major anxiety .. i woke up throwing up in the middle of the night .. And I am also having a clear discharge when I squeeze my nipples .. What could this mean ?