My daughter who is now 3 1/2 months has been refusing to breastfeed now for the past 3 weeks or so. She had been losing weight and crying for 3 days...when she has been such a good baby. I had supplemented with formula and am still trying to get back on track with breastfeeding which hasn't worked. She gets very frustrated and eventually i end up giving her a bottle. I know I have milk but not sure what's going on . We did very well with breastfeeding in the beginning and now we seem to have so many problems I tried the skin to skin, this just made her upset. I did have a period probably about 8 weeks ago..could this be affecting something?? I'm sooooo lost! Please help!