If thats all the dental work you have at age 25, your in fantasic shape!
Mostly sounds like you need a few visits to a good chiropractor and some food education.
The period? Sickly women have painful periods that last for more than one day. Very healthy women barely know they had a period. Naturally you can also be so sickly that you can't become pregnant.
Foods can be your best medicines, the simple fruit raw diet is the best cure of all and it cost no more than normal diet that makes us sick, actualy, it is cheaper to eat raw fruits and far cheaper when your no longer ill.
To use herbs gets pricey, so learning about foods is the most practical thing. I would learn how to use pure oregano, kick bad habits and eat fresh fruits.