My breasts definitely got bigger (from a slightly overful C-cup to a full D) which I wasn't too happy about

I've got the exact same situation with the too-big Cs. Getting bigger isn't exactly what I was hoping for, but on the upside, maybe bras will actually fit now. I spend so long looking for them in my size, and end up paying a lot of money for something that's still either too big or too small, so perhaps helpful.

I gained maybe two pounds in total, so I wouldn't worry about that too much.

Really? I'm slightly more optimistic now. What kind were you on? I've heard that some are worse than others for such symptoms.