I'm not feeling well and doc prescribe me medications that are breastfeeding friendly... should I pump n throw or could I feed my LO?

As you have mentioned, it is breastfeeding friendly, so you can continue to feed baby. For me, I will normally try to tahan without medication until really no choice then I will take medicine. In fact, our bodies will already have produced anti-bodies before we even know it and this is actually good for our babies. Relax and rest well.