Does Salty Taste Of Everything Indicate Dehydration?

Everything tastes salty since this morning? Am I dehydrated? I don t really drink water but I do drink fruit punch and juices like that but not water. And when I get up really fast from sitting too long I feel as if I m going to faint. I don t think it s because I don t exercise because I work out a lot. I don t eat in the mornings but I eat during the evenings. I feel as if I binge eat. I know breakfast is the most important meal of the day but I just don t feel hungry. I m not concerned about my weight, I just don t get hungry up until the evening. So, what do you think about this. I m very concerned. Should I see a doctor about this and yes I ve been to a doctor before and has prescribed me with vitamin d, since I scored a 5 which is a really low number. But the prescription didn t work he told me to take 50,000 each day but 50,000 is waaayyy to much so I asked him to switch it to 1,000 and I take 2 of those each day.