You need to stay consistent with the product brother. Like every other supplement this takes time to kick in. It should give you a better sense of well being. Glutamine is a amino acid and when the body goes through stress this is the one who gets hit first. I would at your size take 20-30grams a day.
You need to check out (ids) glutamine with msm for your joints. I feel this is the number one neglected supplement by everyone. My opinion. Think about this why do Dr. tell people with hiv to take lots of Glutamine. Rebuilds blood cells. Several sites carry the IDS glutamine/msm