I did 1 chest x rays in th april of 2015 and i did a digital chest x ray 2 days ago as a part of check ups ,is th radiation from it harmful?

No,: the theoretical increased cancer risk for 2 chest x-rays is approximately 0.002%, which means that there is a 99.998% probability that there will be no effect from the studies. Keep in mind that radiation effects are cumulative over a lifetime, so unnecessary x-rays are to be avoided.

Agree wi Dr. Gabor: This is a tiny amount of exposure regarding potential for adverse health effects.