I went to mexico from the 12th to the 19th. For two weeks I had watery diahhrea with mild cramps. This week I have felt nauseous, weak, bloated and gassy. Last month I did not get my period at all but I figured it was due to being sick. Also, due to a surgery I had, I only have 20% chance of getting pregnant, so I don t think I am. Could I have garadiasis?