Not sure if this is the place to post but...
DS is now 7m and we stopped breastfeeding after a range of issues at roughly 4 and 1/2 months but this last week my boobs have felt very sore and tender (right one in particular) and suddenly tonight I am leaking milk from my left side! Right boob feels almost engorged although nothing is coming out 
Has anyone else experienced this? Why's it happening now after about 10-12 weeks? Should I be worried and see GP?