Sick now for over three weeks and still going...

[tweeter]

I thought twice before answering because you've been to hosp., and considering a current public health problem, it's logical that you would have been tested. However, my experience of carelessness so common in the medical industry leads me not to take anything for granted anymore.
Did or do you eat packaged salads? Contamination has been found in some of these products, resulting in current outbreaks of cyclospora infection. I might be something else along these lines.

Here's a link to the FDA page:
http://www.fda.gov/Food/RecallsOutbreaksEmergencies/Outbreaks/ucm361637.htm#Cyclospora

Also a link to the Centers for Disease Control page re this current problem:
http://www.cdc.gov/parasites/cyclosporiasis/outbreaks/investigation-2013.html

I would advise you to find out all tests you had done, and specifically any for food-borne problems. A printout of the results would be nice. Insist on it.

I hope you feel better very soon.
tweeter