My son would get horrible nose bleeds every time he ate hot dogs or bologna. My pediatrician thought that I was out of my mind, and told me his sinuses were dried out. I didn't give him the nose drops, and he hasn't had a slice of bologna or a hot dog since, and he also hasn't had a nose bleed either. He can eat other lunch meats like salami, and turkey, so I'm not sure what exactly is in the hot dogs. I have considered taking him to a pediatric allergist, but am not wanting to put him through the blood tests, etc. My baby is also experiencing a milk allergy/lactose intolerance. I am beginning to think that there is a link between that and my son's problems. In searching the internet I have found a wealth of information about food allergies, and the unbelievable things that they can cause. I also think that my oldest son could be having some behavioral problems due to some sort of a food allergy, also. Don't know if this will help you, but if anything I would definitely encourage you to have your child seen by an allergist. I know I will be getting some referrals soon.