So since i've had a mri on 4-18-13 i shouldn't worry bout these pains n my head they feel deep & shooting pains n my head had mra in dec2012 scared?

Imaging studies: Mri/mra are diagnostic aids which do not necessarily always provide a clear answer to the problem being investigated. That is part of the art of medicine, in which an experienced clinician is able to utilize multiple skills to investigate and solve a problem. See a good neurologist and have them advise you. Hope this works out soon.