I had an echodardiogram, and stress test done results-ejection spect, septal hypokinesis, regurg are any of these serious?

Could be serious: The seriousness of your echo results depends on the amount of regurgitation and reduced septal movement noted -- but even unquantified, these are not normal results. For more comprehensive answers to your questions, please discuss with your cardiologist. Also, normal cardiac ejection fraction is 55%-70% -- and you've listed yours as 43% in your additional clinical findings. Be well.