Off to endo after blood test. I am on 100 mcg Levo and had my blood tested by blue horizon. Thyroid antibodies came back red as expected but also b12 of 149. Doctor retested antibodies still red but b12 serum b12 241 which looked like it was in their range. Hospital have requested further test and I go for appt next week. I am afraid they will say it's fine. I have terrible insomnia, memory has been really worrying me and I ha stiff joints particularly in feet in morning. Nails are full of ridges. I am 55 but had pcos also. Any advice how I deal with suggestion that it is ok as I am anticipating the worst!