My both upper wisdom teeth have started breaking and it hurts a lot while I chew or have something cold to drink. Plz help?

See a dentist. If your wisdom are breaking and causing pain, it is probably best to have them removed. But only an examination by a dentist can determine that for sure. And there is no easy solution to correct broken and painful teeth. To avoid infection, further damage to your teeth, and/or continued and worsening pain, see your dentist as soon as possible!
See your dentist. It sounds like your wisdom teeth are having trouble erupting. They probably need to come out cold sensitivity may be a separate issues, like decay, either on the wisdom teeth or possibly the molar next to it. See you dentist!