Hemoglobin 10.7 ....

Hello,
I was going to give blood today but was turned down because my hemoglobin was too low. I have been eating a primarily raw diet. I have been taking Primal Defense and digestive enzymes, and just started B-12(B-12 is taken every couple of days). I also bought some Vit C crystals but haven't started taking it yet. I juice 1-2 16 ounce juices per day. My juice contains Flaxseed Oil, carrots, beets, chard, parsley, celery, spinach, dandelion, apple, broccoli...give or take 1-3 ingredients. I drink a cup of dandelion tea with magnesium at night and 2 cups of green tea in the morning, daily. I have an orange, banana, cucumber, carrots, tomatoes, lettuce, zucchini, olive oil, hemp seeds, broccoli, almost every day....I'm not sure what I'm missing. I was eating a lot of nuts and seeds...I stopped this this week because I have been really constipated (even though I eat well...I believe) I read somewhere here at curezone that nuts were causing someone constipation. That's why I stopped them. If I use salt, it's Sea Salt . Anyway, can anyone guide me on what to do? I am really worried now. I don't really know where to post this so I'm posting in several areas.
Thanks for your help,
Lorena