I haven't avoided anything while breastfeeding my bub, I figured if something upset her and I could trace it back to something I ate, then I'd deal with it then. She was/is a fairly normal baby (I think, lol) and had her moments of extreme wind and fussiness. She was a bit spilly, too, but I think that's normal for most new babies, isn't it? unsure
The thing with cutting random foods from your diet because they *might* affect some babies can end up with you on an unnecessarily restricted diet for no real reason, and while you're breastfeeding you need all the nutrition you can get.
Here's a great link from kellymom about diet and foods to avoid during breastfeeding. This site is a great resource for breastfeeding mums as the info is well researched and up to date. The Australian Breastfeeding Association have some good info, too. http://www.kellymom.com/nutrition/mom/mom-foods.html
My little girl is nearly 11 months and I've not restricted any food, I've eaten plenty of chilli, garlic, cabbage, dairy, chocolate.... The only things I avoid are caffeine (keeps me awake) and alcohol. She started solids at 6 months and loves spicy food and garlic.
The only time I thought about restricting food was when she had blood in her poo- this can be a sign of a dairy intolerance, but she'd had her rotarvirus vaccine at the time and I thought it might be that, sure enough, it cleared up in a week or so. (I had obviously taken her to hospitals and drs and so on). Then we moved O/S, so she didn't have that vaccine again and hasn't had any problems since.
Good luck with it all smile
It may pay to keep a food and baby fussiness diary for a few weeks to see if something pops out at you if you think bub may be reacting to something you're eating.