Aiii sabar la dear, memang pregnant women banyak kena ni sebab hormones and blood volume naik, tapi since you're not pregnant and doctor dah cek, it's likely just dry nose or sensitivity je. Try guna saline nasal spray regularly and make sure you're drinking enough water, a few of my mum friends yang ada nosebleed problem swear by keeping a humidifier in the room at night because air conditioning makes it worse. Tapi kalau terus je lagi, baik la pergi second opinion dengan ENT doctor sebab they can check if ada anything else going on yang kena address. Jangan worry sgt, most cases ni manageable lang!