hello just a quick question, (and Happy Mothers day to all you wonderful moms

)
My little dd is 5 months old, 7.30kg and on a mostly 3 hour EASY (with one 4 hour stretched feed per day, which she is doing on her own - one day at a time) She is EBF, and sleeps through from 19:30pm - 6:00AM (no dreamfeed but i can resettle her within 5-15 mintues to sleep till 7:00am and then feed) ( I cluster feed at 17:00 and 19:00 after bathtime routine) She usually feeds for about 30 minutes every feed and both sides.
My question is, during the past week or 2, I can feel my "boobies" are producing more milk and are getting really engorged at times, not really painfull just very full. I can really feel the milk coming in. Is this due to having a more kinda structured routine? (does change slightly day to day but getting better as time goes by) My eating habits have not changed, (I am a vegetarian - 9 years in the running - but eat sea food - personal preference really)
And just wondered is there an explaination for this? Feel free to ask anymore questions, not sure if everything yu need is here. Just thought its weird - is there such a thing as a growth spurt at 5 months is my body preparing for that - although her feeds arent more frequent yet, or should I just feed her more frequently anyway?
ANy suggestions would really help!!!!

Is this normal.
Regards
Robyn