Load Cell Data Problem - INA125P + Arduino Uno
Thanks for all the suggestions it helped me a lot. 

Yes it seems like the problem was the bread board. After I set my PCB circuit the shacking or touching did not impair my calibration. 

Working on PCB brought another problem to occur. When my hand got close to the circuit, the output value from load cell was increasing in large amounts. This problem is solved by placing two parallel parasitic capacitors, 1uF and 100uF, between Vcc and ground.