I started having nausea, on Tuesday, which was somewhat relieved by vomiting Tuesday evening. However, I have continued having nausea every day since then which begins in the morning and lasts all day, whether or not I eat. Some days I have vomited others I haven't. I do get more nauseous when standing and even more nauseous the longer I stand in one place, which also makes me light headed & increases my headache pain. I went to my doctor Friday. He prescribed phentermine, which hasn't worked. Neither has Pepto-Bismol or Tums. I have had my normal headache and have also notice an occasional very mild chest pain, similar to what I get when I've had bronchitis in the past. My doctor won't be back in his office until Tuesday. Should I go to an Urgent Care Center tonight/Monday or wait until my doctor returns on Tuesday? My doctor seemed to think the nausea may be caused by my low vitamin D 8/.9 or my thyroid levels which were out of whack (I'm hypothyroida & take synthroid)