Hello everyone, I was wondering if anyone could shed some light on my symptoms. Around September of 2006 I started noticing that my hair was falling out. This has been worsening with each day. I had some bloodwork done and my thyroid levels as well as my biotin levels were on the low side. I saw a dermatologist to rule out any skin causes for the hair loss and she ordered a more thorough thyroid bloodwork. This came back within the normal range, though still leaning to low. I then saw an endocrinologist who did not not think the hair loss was thyroid related and who ordered more biotin and zinc levels tests as well as the lupus test. Everything came back normal except the biotin which, in his words (I still have not seen these latest results), was "quite low." In the meantime, I have been taking about 3,000 mcg of biotin (for about 1 1/2 months), zinc and evening primrose oil which I saw online might help with the hair loss. Other symptoms I have are blurred vision (nothing major, just a feeling that I need to blink repeatedly to clear the vision), fatigue (like I could go to sleep at any time (but I still manage to work out every day ...)), cramps on my feet, sometimes really incapacitating; also, sometimes I get sores on my tongue that are very painful; my nails are brittle; my skin is unusually dry. Other than that, I've always been pretty healthy, hardly ever get a cold, my blood pressure and cholesterol levels are great, I'm not overweight, don't eat red meat but do eat very healthily (vegetables, grains, fruit, fish, chicken sometimes, etc.) and work out at least 5 times a week. Any comments? It is very rare to be biotin deficient purely because of dietary reasons.