Ugh. I had salmonella once and I was SHOCKED at how sick I was. Be careful to watch yourself and see that you're on the mend. Two ER visits and I thought I was in the clear, only to be hospitalized a week later.
Don't take anything to stop you from throwing up, or stop diarrhea if you have any. Drink, drink, drink. Water and gatorade/powerade. You can google some recipes for making it at home. Rest and sleep as much as you can. If you think you know what did it, throw it out. If you can't figure it out and it was at home, clear out the fridge.
I'm so sorry. :( I hope you feel better soon!!