Greetings, S.!
Breastmilk is the PERFECT FOOD for babies for the first six months (some research even shows exclusive BF for first year is enough nutrition for baby). PLEASE don't give that dear little one anything else - especially any kind of sugar water, syrup, supository, or enema! These are unnecessary and potentially harmful or dangerous!
My son (exclusively BF first six mo) went five or six days without a BM and I was a wreck! I took him to his DR, and she felt around his belly, listened to his digestion via stethescope, and asked if he was acting like he was in pain. He wasn't. She said to R-E-L-A-X!!! Everything was fine. Exclusively breastfed babies may go days without a BM. "Even a week?" I nervously asked....."Yes!" she answered! Funny, as soon as we got home, he filled a diaper - biggest one in his life at that point! I guess the tummy rub helped? She felt around where the intestines are to see if there was blockage - anything 'hard' feeling. As long as tummy is soft, DON'T WORRY! I know - it is easier said than done. You obviously want what is BEST because you decided to BF. You are doing everything needed! You might drink a little more water or eat some oatmeal yourself if you feel it would help.
God Bless You and Your Little Blessing! Treasure Her!!