Hi everyone. I'm at the dentists in a few days but just wanted to see what some of you think about my situation.\n\nAbout 18 months ago I had an abscess on the gum of a middle upper-right tooth.\n\nWhen I had this abscess I was extremely fatigued, had serious brainfog and could barely get out of bed or function properly probably from the infection leaking into my blood stream.\n\nI had the tooth pulled and within 24 hours it felt like a weight had been lifted and I was back to my normal self.\n\nNot long after having the tooth pulled I started getting problems with the tooth on the opposite side (upper middle left.)\n\nThe tooth had pitting so my old dentist cut the pitting out and filled the tooth.\n\nThat tooth has never felt right even after being filled in.\n\nNow I find myself in the same situation as when I started.\n\nI again have serious brain fog, fatigue and I keep getting headaches on the side where the problem tooth is.\n\nThe headaches are more confined to the left side of my head and the brain fog is all over.\n\nSometimes I can barely notice things right in front of me. Like this morning I was looking for my mobile and it was literally right in front of me.\n\nSometimes when I exercise it feels like the tooth is pulsating a little bit and I get a headache only on the left side of my head above the tooth.\n\nI also get a bit of a nose bleed after these headaches but only out of the left nostril on the side of the bad tooth so I'm wondering if the infection could spread to the sinuses?\n\nThe tooth doesn't hurt but I'm always aware of it if that makes sense.\n\nAnd there doesn't seem to be any sign of an abscess that I can see and no pain when I touch the tooth but I didn't have any pain or sensitivity on the old tooth I had taken out that 100% did have an abscess.\n\n[B]I've attached a pic. Do you think this tooth could be infected and the cause of my issues.[/B]\n\nI went to a doctor at the beginning of this year and he checked my blood and said I was fine but I'm really not.\n\nRight now I don't know how much longer I can put up feeling like this.\n\nAnyway I appreciate you reading. Thanks!