What gives?

My left is usually a bit of a slacker boob, and for the last couple of weeks if I ever watch the nipple through the flange my right will ‘shoot’ 5-6 streams of milk during the letdown and thereafter whereas my left would only ever shoot 1 stream. So I wouldn’t be surprised to get half or less to my right boob.

Tonight, I had a searing pain in my left nipple that made me yelp in pain and swiftly remove it from the flange. I tried it again and suddenly my left was shooting 5-6 streams the same as my right and it ended up pumping more than my right which NEVER happens.

What gives?? Is it possible to have blocked ducts and not realise it or have any side effects? It’s almost like something instantly cleared way and my boob exploded in the flange 😶