unusual reaction to vitamins

I  started to feel like I was a step ahead to success but now i don't know!
I started to take multi vitamin,drink ensure,gatorade and a take pregnenole.
I started to take vitamins,everyday....now I wake up in the morning like I'm starving.Even if, i get up and eat after 3 am.I tend to get very sleepy when I 'm sitting down to long .When I  lay down,I tend to have a hard time,getting up,because I feel like have an extra load on my body,I just feel heavy and tired.
 
Have anyone experience,anything like this or have any advice or suggestions?