I just got hot, sweaty, and my body got the shakes. I was doing mild work, nothing too strenuous, just my normal routine. I sat down because my body felt weak and shaky. I ate a candy bar and my work lunch, now I m still a little shaky, especially my arms, which feel weak. I m doing much better, but twenty minutes later I m still weak and a little shaky. Could it just be the flu?