2 weeks post TT, Lipo & Breast Reduction. When will the pain, tightness and tearing-feeling stop?

The pain and tightness that you are experiencing is due to severed nerve endings that is still in the process of healing. Usually it takes around 6 months for your body to fully heal and during this time your pain should already be eliminated or significantly reduced. It is also advisable to contact your surgeon for possible pain medication.

Your discomforts concern me.  I presume you are wearing a supportive abdominal binder and you are keeping it snug around you.  If you have drains I wish them to be working with fluid coming out but slowing down in time.  It is likely your surgeon tightened the muscle area of your abdomen and the greatest tension is usually around your belly button.  Pain on one side may indicate a little tearing of the repair.  Little can be done except supporting your belly with the garment and let time pass.  I would make a point of seeing your surgeon and letting them know how you are feeling.