It is not late. Kindly take your child to the health facility for them.

The quantity of milk to be expressed depends on the babies weight. Babies require approximately 100ml per kg per day. So check your babies weight, then express about 100ml for each kg everyday. Then divide the total quantity expressed into portions to be fed every 3hours.

Yes, it is normal for babies to sweat while sucking. Sucking itself is work, so do not worry.

Please, try to a gynaecologist asap.

Now is the the right time for u to start

It happen to me too so I use to sit on hot water every morning and night and the inching will stop

Pain in d nipple is common in pregnancy. There's really nothing to worry about. But about it tasting somehow, u might need d nipple to be examined.