Did/does anyone have a problem with low blood pressure. For the past week or so they have been telling me my blood pressure is low. Usually my blood pressure ran 90s/60s. Lately it has been running 80s/50s. Today it was 88/45. After I got fluids it was 88/57. They said that I should drink more water and eat more. I drink about 48 to 64ozs of water a day and my eating can improve and will since I just got the Carnation VHC 560 calorie drink. I think the load blood pressure is caused by the pain meds I'm on, fet patch and morphine.