hi i am 67 years old , I have heart dease, I am diabetic, I also have high blood pressure.I have whole host of other problems. I am in pain management, I hurt 24 7 , I retain fluids I take meds for that I take meds for my heart I take meds for my High blood pressure, I take med for my high sugar, and I also take opiods for pain, they just recently put me on gabapentin for nerve pain now I feel worst than I did before I am weak eyes blurred , I stay dry , can't get enough to drink . I get up all hours of the night to walk off cramps in my legs and I am starting to get them in my hands and arms what is going on ?