Both of my breasts have been red on the top and hot to the touch for months now? i am a teenager and not pregnant. i barely wear my bra anymore throughout these months..?

If your breasts were exposed to sun, which is likely from what you described, you may have a sunburn. Apply an emollient like vaseline and keep your breasts covered. If that does not help, see a doctor. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, no tobacco alcohol weed or street drugs. Get HPV vaccine.