Hi mummy, it could be that your pump is not emptying your breasts well. It happens at times to me as well.
You are doing good with the hot compress method. To empty your breasts even more, do massage your breasts before you start pumping and during your pump as well. You can use either your knuckles or the comb method using a wooden comb to comb towards your nipples. After pumping try to also hand express whatever milk that may be stuck near ur areola.
Dangle feeding when you latch can also help to clear blocked ducts if you are able to latch. I find that baby clears the ducts best.
When all else fails, power pumping is a lifesaver. :)
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