Hello dear
The headache may be due to epidural anaesthesia given to you at the time of delivery
The hair loss you are suffering from is known by the name of Telogen Effluvium.
Next Steps
You need to consult a physician regarding your problems and make a proper prescription, as temporary hair loss may convert to permanent hair loss if not treated with time.
Health Tips
If you wish to have a pocket friendly consultation you can contact me directly over Text Audio Video on Practo app. Thanks and regards.