Thanks for your question. This is not a new procedure and has been done for years. I find it to be of limited value though for most patients. Most wrinkles on the lower lid area are "static" wrinkles and are not caused from contraction of the facial muscles and therefore it does not always provide the results patients are hoping to achieve.
It is not too soon, and since everyone is different and may require different amounts to achieve their optimal results, I would highly encourage you to return to your provider and express your concerns. Your provider may be able to use a slightly different technique or amount to get you the results you desire.
Short answer : NO. Although it might be tempting since you are only supplementing with breast milk, it is not a good idea. Your baby is too precious to take that risk.
The very best way to lessen the chance for side effects is to be treated by an experienced dermatologist or plastic surgeon.
I strongly recommend that my patients wait 24 hours after a Botox treatment before engaging in an exercise session. Take a long leisurely walk instead!