After you posted, I too researched a little and saw on some mothering posts that it is very normal to have higher than usual cholesterol levels. I read that one shouldn’t get checked until at least 6 mths. AFTER weaning.
When not pregnant or lactating, if necessary, Red Yeast Rice is a very effective natural – yet temporary – statin, along with the cod liver oils, healthy meats (i.e. grass-fed), healthy dairy, vegetables and fruit. Yes, there really should be more veges than fruit in ones diet as said above.
I really wouldn’t worry about it right now, though; get as much sleep as possible, continue to eat right, getting enough of the right stuff, enough calories and good fat that both you and the baby need (now is not the time to restrict healthy calories).
If this had happened to me, I would’ve begun looking for another doctor. Just my opinion.