I am 17 and for the past 3/4 days I have has a very dark brown (sometimes clotty) discharge, just enough to need a pant liner. I recently got over a mild form of a UTI with a home remedie (lots of cranberry juice). When I eat seedless watermelon it just runs through me and I have to (tmi I know) poop about fifteen minutes after consumption of such food. It's runny, very runny. I have headaches, mild cramping, a bloated feeling when I lay on my stomach, loss of appetite (I usually eat my whole meal..now it's about a quarter or half of it), and nausea sometimes, also I have been fining myself fatiguing easily. I had sex 4 days ago with my boyfriend, if that even matters.. My mom said it is my body changing since It's around the 8 year anniversary of my first period, and the end of my uti.