Hi Agnes,
The lump is still there and the right SC joint is slightly higher and more pronounced than the left (it could have always been like this though, who knows). I still have slight pain ever now and again. Bench press doesnt hurt at all (1.5% Bodyweight) and neither does swimming (competitive level).
As for what I did - rest was a biggy, i had around 3 months break from the gym/ swimming. I don't have any instability in the joint (as far as I can tell) and I've accepted this is the best it's going to be (pretty close to 100% for most things). Every now and again it flares up (feels like inflammation within the SC joint) and there is some mild pain coming from the area (2/10 on pain scale). I haven't been able to isolate it to a particular movement, but sitting at a chair without chair arms triggers it sometimes (sounds odd I know).
I hope you have a quick recovery - I read a lot of scientific journals so if you want to discuss further I wouldn't mind!
I don't ever recall my shoulder becoming loose. What did your doctors say?