Oh dear.....sorry, coming on here again to correct some opinions/expertien ces masquerading as fact :)
Stress does not affect your milk. It can affect let down, very temporarily, if you are very stressed and/or in pain. It does not affect it beyond that. This is well-researched.
Food intake does certainly not effect the quality of the milk. We know this from research too. I am afraid, floops, that looking at your milk after a period of eating well and judging that it looks richer does not counter this research.
The quality (ie the presence of cream) of breastmilk is unrelated to the mother's diet. It is related to the amount of milk in the breast. Lots of milk = proportionately less cream. Less milk = proportionately more cream. Zero to do with the mother's diet - truly.
I am puzzled as to how you can check there is 'no more milk'???? The breasts are never totally empty. You might not be able to get more out by squeezing/expressing, but there is milk stored in there, for sure.
If you feel your baby is hungry, then put her back on the other side , or try breast compression. OTOH, you have got good supply if your baby is on the 98th centile, and I wonder if your baby is showing you by her behaviour not that she is hungry but she just luuuurrrrrrrves being on the breast and resists being put down.
Top ups will not help your situation at all, sorry.