Lightheaded and dizzy

Found a way to describe the way I have been feeling, on and off, the past three days, since I stopped the Dr Lam supplements.
Lightheaded but heavy footed. I got that feeling on the way back home today. I feel light-headed and slightly dizzy with a distinct feeling of being weighed down in my feet. As if I could benefit from hanging upside down for a while (and I think I just might lie down and prop my feet up after I'm done typing). I haven't felt that way since starting the Lam program, and I guess now I can attribute the credit to them for helping me out of that feeling. As if I'm about to faint.

Does anyone know what this is, why it happens, and what I can do about it?

By the way I'm pretty sure I'm anaemic or at least I was when I was a teenager and last time I checked, the inside of my lower eyelids is a pale pinkish-orange. I haven't taken my whole foods iron supplement for a while because i wasn't sure if I should be - although I don't know of any reason why I shouldn't especially if I need it - but I think I'll take one now.