According to yours sign and symptom you are suffering from flat nipple areola.
It's can be due -
The shape of your nipples may also change during pregnancy.
Sometimes, flat nipples push out during pregnancy and the first week or so after the baby is born.
It’s not uncommon for a woman to worry about breastfeeding with flat nipples. The good news is that with a little extra time and patience, breastfeeding with flat nipples is possible.
Many nipples will stiffen and protrude when stimulated. You can check to see if your nipples are truly flat or inverted. If you’re able to coax your nipples out, then chances are your baby will be able to, too.
Here’s how to check:
Place your thumb and forefinger on the edges of your areola, which is the dark area around your nipple.
Squeeze gently.
Repeat on your other breast.
If your nipple is truly flat or inverted, it will flatten or retract into your breast instead of pushing out.
Next Steps
Other method -
you can use breast pump and other suction pump.
Hand Express Method -Cup your breast with one hand, with your other hand make a “C” shape with your thumb and forefinger near the areola, but not on it.
Squeeze gently and release the pressure.
Repeat and try to get a rhythm going without sliding your fingers over the skin.
Drops of liquid should appear just before your milk begins to flow.
Express just enough to soften your breast.
Try a nipple shield or breast shells
A nipple shield is a flexible, nipple-shaped shield that fits over a mother’s flat nipple and areola. It is used as a temporary aid to encourage latching.
C hold techniques -
The C-hold allows you to control the movement of your breast
Create a “C” shape with your hand.
Place your hand around your breasts so that your thumb is on top of your breast and your fingers are on the bottom.
Make sure your thumb and fingers are behind the areola.
Gently squeeze your fingers and thumb together, pressing your breast like a sandwich.
V hold Techniques -
The V-hold uses your forefinger and middle finger to create a scissor-like shape around your areola and nipple.
Place your nipple between your forefinger and middle finger.
Your thumb and forefinger should be on top of your breast and your remaining fingers underneath the breast.
Press down gently towards your chest to help “squeeze” out the nipple and areola.
Health Tips
If above method will not effect then go Surgical options.
I natural methods fail to work, Surgery may be an option. There are two types of surgery for repairing inverted nipples.
One type preserves some of the milk ducts so that you can breastfeed and the other does not.
Before going to any method you shuld take consultation from a doctor.