I ve had 2 episodes in the past 8 months where i wake up w/ nausea, sweating badly, dizzy, once I passed out for several minutes, this time I did not. I was wondering if it is low blood sugar. When I drank juice, the last time, it made me better, although exhausted. I ve had about 3 or four episodes like this over the years, I passed out a couple of those times and nearly passed out the other two but the last 2 were only 8 months apart. Should I always drink juice or do I need medical care.