Serious illness

Anyone got ill after having the eggs bought from Food Basics supermarket?

On Christmas Eve we went to Food Basics nearby to buy some food. A kind of eggs is on sale for 1.88/package, so we bought two packs.
On christmas, I made a plate of scrambled egg with them. He ate more than I did. On Christmas evening, I cooked rice with scrambled eggs.
The next morning, my honey said that he had a serious bellyache, and after boxing day shopping, he got a high fever without any strength on the whole body, together with muscle ache on two legs. We thought he might have caught a cold. The evening of boxing day, I made pancakes with egg and onion, he felt nauseated on the smell of pancake. So he just had some porridge. I had some pancake though I felt a little sick of them too.
On December 27, his fever went away. I made simple pancake without onion and applied less vegetable oil, which made the flavor very light. Then he had a little pancake. I thought he was better since he could eat pancake. I had a lot of pancakes.
On December 28, I made light pancakes again. He ate a piece of that and felt bellyache again. I ate more than him. In the evening, I felt sick and didn't have any appetite, which I thought was caused by hunger. I bit some pancake before meal. Then I felt very nauseated when having meal. Immediately after I had a boiled potatoes I suffered from Vomiting and Diarrhea.

At that time, we realized that we could have got Food poisoning. Then we carefully remembered the foods we had had. Probably, the eggs are the poisoning food, which is the only food we continuously had these days.

Anybody has suffered from similar illness with food basics eggs?

The information from the egg package: Burnbrae Farms, best before Feb 04

PS: the food we had before illness
1. eggs, Burnbrae Farms, best before Feb 04, from food basics
2. potatos, yellow fleshed, 10lb in paper bag.ONTARIO potato dist.(Alliston) Inc., from food basics
3. pancakes, Selection all-purpose flour, 10lb, from food basics
4. onion, as seasoning in the eggs, potatos and pancakes, from food basics

Among these, eggs and potatos are the main suspects.