13wo ebf dd has gone from sleeping 8 hours to 2. Why?

[Sengi]

My 13 wo dd was sleeping at least 6 and often 8 hours a night by 8-9 weeks. However since 11 weeks she has been waking sometimes hourly, and going 3 hours max. She is also very difficult to settle after a feed and often cries for more or wants picking up. She was never like this from newborn until a couple of weeks ago. Thought at first it was a growth spurt, but seems to have lasted too long now. Weight gain is good, nappies fine, but could it be my supply dropping so she is still hungry?

No, not necessarily. Babies do this for no reason at all. Trying to predict it or understand it will drive you nuts. It'll be different in a fortnight anyway.

Just keep an eye out for any obvious signs of illness and hope that it doesn't last.

not jealous at all of your good sleeper, no, not at all