Suggest Remedy For Pain In Side Of The Stomach

HI, my sister is having pain in the left side of her stomach. she also feels hot and cold at the same time. she s very uncomfortable, she s already had her appendix taken out after having a hysterectomy, so I m not sure if that would have anything to do with it, except she told me her appendix can t burst again. lol. she said when she ate it made the pain hurt a little more. she s very tired. last night she was crying in her sleep, moaning about the pain so bad it woke up her children. she s 45 years old. please write me back, I m unsure if I should let her ride this out, or take her to the hospital now, although she said she would wait to see if it got worse, on the other hand am kind of flipping out, yes it could be nothing just something she might have the, but what if it s not. please send me an answer if you have one. thank you Elisha Rucker