Been feeling weak and tired.. body aches. then came down with headache, irritated sore throat, and runny nose (a cold) feel better.. still have a weak jittery feeling throughout arms and body. ?

Viral syndrome: You have described a very typical viral syndrome. We call it this because we often don't know the name of the virus or how you got it, but the symptoms of fatigue and body aches are classic, as is the sore throat and headache. Feeling "jittery" is not unusual. It will resolve without antibiotics, only helpful in bacterial infections, with rest, hydration/fluid, and acetominophen/ibuprofen.