my body is pissed at me but looks great

So just a few minutes ago i reached down for a pen and almost fell over from dizziness.  I need to figure this out.  my iron is high in my foods, i eat on a regular schedule and i am drinking enough water.  I'm just gonna assume it's my body rebelling cause it's losing inches, and weight and looking good.  I will just have to accept this?  i don't know, maybe some extra supplements a multi vitamin.  I can't deal with my body acting up just cause it's mad it can't have pizza till August 27th.