Iron pills: Iron pills can affect digestive system & cause nausea or upset stomach, but not the other symptoms you described, unless you are taking the iron on full stomach, as food can lower absorption of iron, hence less effectiveness for your anemia, hence one possibility is that your anemia might be causing those symptoms. ...Read more.
Investigation procedures should follow those outlined in the IAMFES Procedures to Investigate Foodborne Illness book: 1  Case history interviews Collect additional case history information to supplement any previously collected information. 2  Evaluation of the foodservice establishment.
Stages of Interview Investigation Thematizing -the why and what of the investigation. Designing - plan the design of the study. Interviewing - conduct the interview based on a guide. Transcribing - prepare the interview material for analysis. Analyzing - decide on the purpose, the topic, the nature and methods of analysis that are appropriate. Verifying - ascertain the validity of the interview findings. Reporting - communicate findings of the study based on