Just recently I've started feeling really sick twice every month, round about when I'm ovulating and then again a couple of days before my period. I also get a headache and feel tired and lacking in energy and motivation. I'm guessing that, because of the timing, it's got a hormonal cause, but it's a new thing after having trouble-free periods for years. I'm 39 and don't have any other health problems.
Has anyone else experienced this?