That really. I'm 57, no periods since Jan 2018 and only patchy ones for 2 years before that. Had a clear smear in October.
I had my booster on Thursday. Noticed some dark staining in my pant liners yesterday. Today I am bleeding enough to need a proper sanitary pad.
I've done a yellow card report and will ring my gp tomorrow, but I was just wondering if anyone else has heard of this or experienced it? I'm a bit freaked out.