Im not sure about anyone else but I have gotten sick a few times, an I am sure it was from the Phen. My symptoms have been headaches *that are now starting to go away

* and this past week I have been feeling a little naseaus *sp*

from the acid that I have had in my stomach. I think one of the side affects of Phen is a upset stomach *which I have had lately* while your body tries to get use to the medication.
Hope that helps