The warning labels on wine is one of their tools. It is good to warn those who may have a problem with sulfites, but it seems unfair to scare the general population for something that is very rare. Red wines headaches are common to people that suffer from allergies. Red wine contains histamines from the skins of the grape. Unfortunately antihistamines react with alcohol causing drowsiness.
Recent studies indicate that aspirin is better for red wine headaches than other forms of relief.
I am not a physician and this should not be construed as medical advice. In most States it is illegal for individuals to sell wine. Auction Houses will usually take wine from consignor's, regardless off what State the wine is shipped from. Stephen Reiss, creator of this site, is associated with Mid-Atlantic Wine Auction Company and may be able to help you sell your wines.