You are young! The family doctor can help you just as well. Considering you age I would suggest that you talk to your mom and tell her what is going on. Tell her you ideas about what it might be. Get a good check up and discuss it with your family doctor. Do have difficulties talking about this stuff with your mom? Chances are she has noticed the emotional trouble you are having and will actually be relieved if you go and talk to her. We parents have a tendency to worry about our kids as we watch them struggle with the things we know they are struggling with. My daughter is 13 and I watch her struggling with her stuff. It breaks my heart to see her hurt so much. I try to tell her it will be ok, that time passes and things will get better but she just can't relate to the fact that I once had the exact same problems...well actually I hope she doesn't have the same problems I had since I was sexually abused when I was 12...Sigh. But she had to grow up with a borderline mom so the abuse wasn't the same but it was still there...anyway I digress.

As for B vitamins; they come in all sorts of foods. If you eat a large variety of foods and cut out the junk food you won't have problems with getting them. But here are some foods that are good:
Breads & grains: bagels, english muffins, pita bread, fortified cold cereals, fortified oatmeal
Fruits: cantaloupe, honeydew melons, bananas, prunes
Vegitables: corn, peas, boiled plantain, Dark green vegies like broccoli and spinach, cauliflower, cabbage
Meat: pretty much every meat as one type of b vitamin or other.
Also milk and a variety of nuts.

Be warned though that there are many different B vitamins and each come in different foods so it is important to eat at wide variety of foods. Of course that is the truth with all vitamins and minerals so eating a wide variety will help you in more ways then just the Bs. There are also vitamin supplements that are ok but the vitamins in food seem to have a better affect but if you can't get the food variety then the suppliment is good. But first talk to your doctor, there are also books about PMS. Plus remember that your brain is going through a ton of changes right now. In puberty the brain grows to like twice the size of an adults then as you use certain nueron pathways they get stronger and the pathways you don't use get removed. This construction project puts you life in a funky place because you have all these new pathways that your brain has to choose from and sometimes the brain sends things down odd pathways just to see how well that direction works. So be kind to yourself and realize that things will get better as time goes by. You are in a super cool part of life. I must strongly advise you not to use drugs or alcohol not just because they are illegal at your age but because it will make the whole brain growth thing get messed up. Healthy diet and lots of water.
good luck,
Carrie

<font color=green>Not knowing when the dawn will come, I open every door.--Emily Dickenson