please help

Call her doctor. Explain her symptoms and follow the advice from the doctor. In the meantime keep her warm and hydrated.

Hi Strange Love.  I know it's Saturday, so you may not be able to see her doctor. If you can, go to the store and buy Imodium to stop the diarrhea.  Also buy Gator Aid (in a flavor she likes) and 7up or Sprite.  Force fluids, make her drink even if she's not thirsty.  If she runs a fever over 100 degrees take her to the ER because that means she's getting dehyrated. Like Rosie and Sjkly said, keep her warm with blankets and if necessary two pairs of pajamas.  I hope you were able to reach her doctor.  Thanks for taking such good care of your Mom!  (((Hugs)))

everyone above has given you wonderful advise, i just wanted to add, that you may wanna give her the fluids at about room temp cuz if they are cold they might upset her stomach more and some broth would be good to and dry plain toast if she can eat, you can even make warm blackets by throwing them in the dryer and letting them tumble in med heat for like 3-5 minutes and put it under her comforter, and make sure to keep her feet warm, a hat and some gloves are great if she is putting the covers over her head. how long has she had the stomach ache? she may have a case of food poisoning, if the stomach ache only came on for a couple days. I really hope your mom feels better and kudos to you for taking care of her.