Can a problem with dental implant go undetected with X-rays? Could issues with implant cause chronic sore throat and headache?

About ten years ago I received a titanium implant for my front tooth. The tooth was extremely infected after a failed apicoectomy years prior. The tooth is solid in my bone and not painful, but there is a bit of a tingling sensation. I think something is wrong because for years, when I push under my nose small amount of foul tasting discharge comes out of the gums behind my tooth. I also have felt sick for several years and am wondering if this could be contributing to my general health.