oh grapes was a huge huge issue with my DD so bad that we even investigated fructose malabsorption as a problem. She was having grapes before bed every night and would wake up with night terrors, took ages to figure out it went on for 10 weeks or more. I stumbled across the fact that it may be because of grapes, I think I did a google search or something, never ever would I have suspected fruit but I was at my wits end and had to try anything, so we stopped the grapes and the only fruit she was allowed to have was banana. The night terrors stopped and the sleeping went back to normal but the headbutting, biting and aggressive behaviour continued thats when I found out about 160B which is linked to headbutting in kids. If you search belly belly there will be some posts on here about that and about grapes being a problem too. They also contain a natural MSG. You may find that its not salicylates or fruit but just the grapes.