My ladyfriend and I got our 2 shots. 1st, everything fine. 2nd, she was down with bad cold symptoms for 3-4 days.. I felt fine, for 4-5 days then just felt groggy and out of sorts for the following 4 days. Am in general good health, on no meds, but at 70 do not feel like taking chances. Had a bunch of innoculations courtesy of the Army, figured they didnt kill me, so.