My moms been having diarrhea several times a day for about a week,she’s 66. She takes nexium, furosemide, synthesis and Lipitor (10mg), and singular daily. She has been feeling tired his past week and yesterday she was cold and said she was more thirsty than normal. Today she felt extremely tired and took her blood pressure, it was 123/53. She ate and drank some water and milk and it seemed to be back up to normal for about 20 minutes, and then it was back down again and she was feeling extremely tired. Could she be dehydrated?