first what you need to do is relax. whats the worst that can happen? you would need to suppliment. and though i do not encourage this, im just saying that your baby will not starve to death in a short period of time. seriously stressing will not help your milk let down so you need to relax.
second, find a local or nearby la leche league. they have on their website listed any and all leagues in your state. remember to check all neighboring cities and towns as well. the closest one to me is an hour away. they will be able to help one way or the other.
take caution going to your doctor. they usually do not have your best interests in mind, as most clinics receive kickbacks from formula companies to suggest and recommend formula at any given time. unless you personally trust your doctor outside the clinic, i would take caution, and remember that your instincts are more important and more spot on than any doctor. however, if you feel in your gut something is wrong and needs to be done, by all means, listen to those instincts. :D
anyway. you have to relax, drink more water, dont diet, take it easy on the exersizing. take it easy, do some light walking and nothing more. sleep more, ask someone close to you if they will help you out with chores or soemthing so you can relax. and remember, breastfeeding is supply and demand, so any time your baby wants to nurse, do it, and it should increase your supply over time. again, unless you know there is a health issue at stake, i wouldnt worry about supplementing, and definatly do not start solids.
www.askdrsears.com is also a good place to look....