Could Sinus Infection Be The Cause For Severe Headaches?

for the second time in about 3 weeks ive just been exhausted for 3 or 4 days and cannot figure out why ?the only thing i can think of is i always have a awful sinus infection to the point t0 where every time i blow my nose its lime green and usually crusty .i do know it gives me headaches .this has been g0oing on for several years as a rsult of a cocaine habit i once had .i kicked that habit many years ago but it left my sinuses a real mess.im just tired of feeling bad ,could this be my problem/