Five month old still fussing at breast. Any advice?

[Dontfencemein]

My DS is just over 5 months old and is EBF. For as long as I can remember, he has fussed and cried during most feeds during the day. He tends to be fine at night (7am to 7pm). His growth is good, on 50th centile.

At first I thought it was a fast let-down of milk, but my supply has settled now. I am starting to wonder about silent reflux (he doesn't spit up or vomit very much), partly based on the fact that he arches away and seems to be in pain. The health visitor recommended that I think about my own diet. He has eczema too. Might something that I am eating be upsetting him?

Has anyone had similar experiences?

[quackojuliet]

Only experience I have is with 7 week old dd but she acts similarly - but also has mucousy green poo which has led me to go dairy free. Seen improvements over the past week but not entirely sure yet.