Last Friday Night I Had Food Poisoning (that Was Determined

Last Friday night I had food poisoning (that was determined by Urgent Care on Monday). Vomiting first, then diarrhea, then Monday I was told I was dehydrated. Drank lots of Gatorade and chicken broth and felt better. However, I haven't had a bowel movement since last weekend and am feeling it. Yesterday I tried a fleet enima, senokot and today tried a bottle of Magnesium Citrate. Lots of gurgling and gas pain but no movement. II've had more than normal bowels all my life, daily at a certain time of the day, and had a 10 year colonoscopy last month so know this is related to the dehydration. What can I do next short of using dynamite? Jeanne