I've just realised that you're not meant to eat more than 2 portions a week of oily fish while bf. I love oily fish,esp mackerel and ate quite a bit over Christmas (probably 5 portions a week for 2 weeks as lots of buffets at relatives houses etc)
Will this hurt DS? Why is the warning in place?
If this is something serious, it would be helpful if it could be occasionally mentioned by HCPs, instead of 'you can eat anything you like now, don't drink too much'