I tested negative for strap throat ive had a very soar throat and chills with a fever my concern is that i have not passed any stool in last three days and im starting to get worried is this a concern or normal when your sick ?

Altered bowel function is common with respiratory infections like strep, colds, etc. Constipation rarely is harmful; it's not a concern unless you are uncomfortable. Try eating more bulk/fiber foods (fruits, veggies, beans, etc) and maybe use a mild laxative like bisacodyl (Dulcolax and other brands). It probably will clear up as your viral infection improves.