High Cholesterol when pregnant (sorry long)

I have these strange white marks under my eyes. Kind of look is like the pigment has changed from olive to white which appeared about 2 months after DS was born (he is now 2). I have asked many Dr?s and they all tell me is that it is related to high cholesterol.

I went to my new GP for a check-up yesterday and told her that we were going to be TTC #2 in June this year. I also asked her about these white marks and she also said that they were to do with high cholesterol. I told her that I didn?t understand this because I had my cholesterol checked about 4 months ago and it came back 3.8 which is fine. She mentioned to me that the Cholesterol level goes up in women when they are pregnant. Mine would have also been higher than normal because I had Obstetric Cholestasis with DS. She said that it will probably get worse with the next pregnancy and that the skin will need to be cut away after I have finished having kids by a plastic surgeon.

This has got me thinking. I am not so worried about the marks themselves just what is causing them. If my cholesterol is that high when I am pregnant am I at risk of a heart attach or stroke? The more I think about this the more it is starting to freak me out.

Any info on this would be great.

Lolly