Does my continuous headache/head pressure sound like a sinus headache/infection?

i'm the queen of sinus infections and i too had a headache for 13 days straight. i too had a mri, ct scan, multiple medications, blood work, and physical therapy. out of pure desperation i saw a chiropractor....and it worked! when i left the appt the headache was 80% better and was completely gone 2 days later. my chiropractor said that certain headaches can mimic sinus headaches... worth a try....