FTM and obviously first time BF. My daughter is 4 weeks old today and just in the last couple days she will only nurse one breast per session and only for 5-10 minutes total. She used to do both breasts for up to 20 minutes total. She does not have a breast preference it doesn't mattter which breast I put her on first she will only do that one breast. I have tried everything to get her interested but she simply is not after one boob. She doesn't act upset or in pain, her urine and poo output is normal, she's gaining very well. She is battling a cough/cold and this feeding pattern started when the cold started so not sure if that had something to do with it. I'm nervous it's going to mess with my supply if she decides to go back to her normal eating habits, so I've been pumping the breast she doesn't feed off of and then make sure I put her to that breast next session. Any advice mamas??