Hi RubyAnn,
Martin got fainting spells a lot and even fainted and cracked 2 ribs, (i was at work and he just managed tcrawl to the bedroom, grab the phone and call me as I am first on his mobie list).
The doctors said he had a low red cell count and high blood pressure. He now takes Feroglogin which you can get health shops here, and he seems to be much better, his last blood count was ok. Maybe you can ask them to check your blood?
Feroglobin has vitamin b12 and Iron, it's in liquid form so gets absorbed quicker.
As for the walking, Martin takes cod liver oil, to help with joint pain, but I think his legs are flobbly because he is rusty. The more little walks he does the better they get. I think he needs to get strength back in his legs.
The rest, I can't help with but you really need to get someone to give you some answers. Difficult I know (doctors can be very dismissive) but try.
All the best.