Opinion on stool: may there be a tape worm?

Hi,

Sorry for asking this if it is inappropriate. I currently have no family doctor and the nearest walk in clinic as a long way away. I recently read an excerpt about tape worms that in common cases humans who have tape worms don't realize they have them for their entire life, only to be discovered in an autopsy, since tape worms do not present themselves with any (very noticeable) symptoms in many cases.

I traveled to Peru a year or so ago and I believe I may have not eaten in the most sanitary places. While in Peru, I experience mild weight loss but I assumed its because I was traveling a lot and not eating much. Anyhow, just recently I have a very low concern that I may be infected with a tape worm. Unfortunately, I have 0 medical experience and certainly have not diagnosed tapeworm or even seen signs of tapeworm in stool before, so I can not know what it looks like. I'd like to get an opinion as to whether my stool may contain tape worm segments. The http URL below is a link to a picture of my stool with whitish parts in it (itmaybe food that I ate last night potato or something.)

Warning this is a picture of my stool:
http://farm3.static.flickr.com/2605/4123531676_57e7ec12ba_b.jpg

If anyone with experience diagnosing tape worms could tell me I'd greatly appreciate any info.