For 6 weeks I've had a head cold, for 4 weeks sick to my stomach on and off,for 2 weeks now little to no appetite and when I do eat everything comes back up, down to my stomach bile.I have not changed my eating habits tried anything new. Everything is the same. I'm a 31yr old female. Had a tubal litigation in 2011 so I can't be pregnant. What is wrong with me? I have had stress, but never before been sick like this.