For the last 3-4 months I have been experiencing the following: Itchy anus, sometimes small amount of blood on toilet paper. Stool with white seed like spots, dull lower left abdominal pain (2/10 pain). Sometimes dull pain moves to waist or lowerback. Very tired. Stool has been green last 2 days (solid and floats). Could this be parasites? Or should I be expecting worse?