Hi there. I am wondering if I am dehydrated. I have been experiencing naowlusea for the past 4 weeks. I just finished a 6 week course of radiation treatment for my prostate. My psi s are back down to .01. I am a 65 yr old male, pre-diabetic, hx of high cholesterol. on metformin, and cholesterol meds. I take Bayer daily, just one, and almost nothing else. I am overweight, but losing slowly, almost 60 lbs down now. I am experiencing headaches, I drink water mostly during the day, I thought that may be what was causing my nausea I am drinking so much.. I work construction prefabrication in a warehouse, it s hot all day. I also drink 1 yerba mate/day. I eat fruits and veggies with a small sandwich typically at lunch. 1 egg in the morning for breakfast and wheat toast. I have a had bouts of diarrhea and constipation in the last week. It makes me feel weak. The nausea is better after I eat. I am also experiencing a sharp pain in my lower left groin area, made worse when I walk. I took some tums yesterday because the nausea was so bad, it subsided slightly. No blood in stools. Very bloated but not passing gas. I am thinking that maybe I need to be drinking a Gatorade as well because I sweat profusely at work, I thought maybe my electrolytes are off. Thoughts?