Hey there. High ESR means presence of inflammation which can be due to multiple reasons. Since pregnancy is an inflammatory state in itself, ESR can be raised but should come down after delivery. So if it's still high, it needs to be evaluated. Please describe any other symptoms that you have other than this. Also, not breastfeeding is another thing that needs to be evaluated.
Next Steps
Connect for proper detailed history and other relevant details.
Health Tips
visit a gynecologist for not able to breast feed properly