Cylindrical shaped very fast hovering craft..1972 siting

On my way across the street to go babysitting at approx. 5:30 p.m. / dusk, I heard a loud buzzing tone...similar to the electrical transformers on a foggy morning.  I looked up and saw a cylindrical shaped object with rotating lights hovering over me at about the heighth of the telephone poles.  I stood in the middle of the street for about 20 seconds just watching it and it took a deep dip and sped away in 1/2 second.
I continued on to my babysitting job, and while there got very ill and threw-up a couple of times.  I decided no one would believe me then, so I never told anyone until now.  I also lived very close to the Los Alamitos Air Base at the time and I decided there was some experimental stuff going on...obviously to justify what I saw.  I have since talked with many engineers who have informed me that we did not have and still do not have the technology that I describe here.
Date is approximate.  PD