Ay, mama, that combination of headaches and numbness in your arm is something you really need to check with your doctor about, especially since it's been happening often, hindi ito normal na dapat i-ignore, kaya please make an appointment soon or go to the clinic. One of my mum friends had similar symptoms after her CS din, at ang doctor lang ang nakaalam kung ano talaga ang cause, could be so many things, from nerve stuff to posture issues from carrying baby. Better safe than sorry, no? Let me know what your doctor says, mama!