Hi, I m not sure what to do. For two weeks now at least my poop has not been normal. First it was yellow and watery and floated, then it got darker, more orangy and mushy/semi solid, but has now gone back to watery and yellow. It doesn t smell like poop either. To me it smells like burnt hair or melting plastic. I have also been having gas, and abdominal pains resulting in a sometimes decreased appetite or feeling of nausea. No vomiting or fever to my knowledge. Recently went on a vacation with my husband to Cancun, MX and while careful not to drink any water than wasn t bottled, I did have about half a glass served to me by the waiter at one of the resort s restaurants. Returned home to a sick child with the flu. Thought perhaps one of those two things may have caused the issue but it s been 2 weeks with slight improvement and then backsliding again. Additionally, I saw my primary Dr yesterday for unrelated issue and now kicking myself I didn t bring this issue up. Weighing in at the doctor s office I also have lost weight without trying or changing eating or exercise habits. To my best knowledge I am about 15 lbs lighter than the last time I weighed myself 2-3 months ago. I am a female, 37yrs old. What could this be or what should I do?