It's funny how anxiety is a set of fears that are mostly exaggerated or fabricated, yet the OPs attitude toward food safety was footloose and fancy-free! Making sure your food gets cooked to the right temperature and that it has been stored properly are things where a little OCD is useful.

either you messed up and need follow recipes better... or you need to slowly broaden what you eat. if you stay to a small group of foods and all of a sudden use a set of ingredients you are not used to, you can mess yourself up for a day or two. I have family who will just decide to eat Indian food out of the blue and end up exactly like this for a weekend, but all they ever eat is basic central canadian, play it safe, roast and potatoes type things.