dear friends

I have a situation. I take my supplememts and I eat well but i am falling asleep when i shouldnt be like in meetings. When I am sitting still is when it happens. It like I black out and I know that its not the sleeping disorder. I have had my period for three weeks, and I am so sleepy at times, that I will pass out during meetings or begin to babble. I work for homeless services and I would not like it if I offered my couch to one of my clients. Hubby wouldnt like it. Anyway, I was wondering if its my b12. Dont like it. Please give me words of wisdom. Drs. are testing me. Huggs Stacy