I'm 17 weeks now and have been mercifully completely free of sickness/nausea since 11 weeks, when I suddenly felt absolutely fine. I've had a really good few weeks and have felt pretty much back to my normal self, but over the last few days, the nausea has returned along with pretty nasty headaches and occasional dizziness. I think my appetite has reduced too, and I seem to be struggling to eat particularly in the mornings. I wouldn't say I'm confused exactly, but my words keep coming out in the wrong order or I can't think of the word for something. Probably just baby brain, but it's happening a hell of a lot.
Is it normal for sickness to suddenly return when you're well out of the first trimester? And when do headaches in pg become something to worry about? Thanks in advance!