I would agree with getting a checkup. I did at about 30 days and a full bloodwork came back normal in every respect, but I still have days like that. Sometimes it's tiredness, sometimes it's just feeling totally spaced out/off balance, and sometimes neither. I'm almost at the 90 day mark and still feeling it at times. I figure I drank for almost 2 decades, and the last 4-5 years pretty heavily - so it's going to take a while for my body to recover.