Hello. I am exclusively bf a 20 week old. He has thrived so far. Won't take bottle at all. However I have had a d and v bug for nearly 5 days now and not kept a great deal down (sorry for tmi). DS is trying to feed more frequently but I don't feel as if anything is there. I try expressing to increase supply - but nothing there after feeds, please help, feel unwell and stressed out and I am petrified of nalnourishing my son. PS he seems OK at the moment - not crying.