Feeling fine. ate sliced turkey. about 30 mins later got stomach cramps, diarrhea, and nausea, fatigue, and weakness. no fever.

Food poisoning: It's certainly possible that the turkey you ate was contaminated, resulting in the symptoms you have described. Most of the time, symptoms from food poisoning improve on their own within a day or so. If symptoms persist, worsen, or change (bloody diarrhea for example), a doctor visit for stool testing should take place. Hydrate well, and hope you feel better soon.