What can cause a sudden onset of severe tinnutis? 2 days after spinal injection for spinal stenosis(L3&4), someone threw a light switch and I now have constant ringing, buzzing in my head. Initially had "ice-pick" type headaches that went away. Moderate pressure on left side of head (ear) when ringing subsides. MRI, MRA of head and neck are negative. Audiology report normal for age. C-reactive protein, RA negative. EEG perfomed & 24 hr urine for VMA & metanephrines awaiting results. CTA scheduled this week. Anxiety unmanageable with Xanax, can't sleep at nite since it gets worse at nite. Loss of weight: 15 lbs in 5 weeks. Trying Zoloft with xanx at nite to try and sleep. Took Mobic for years for back pain/arthritis but discontinued before injection. Chronic sinus infections for years. Common antibiotic resistant. Rocephin seems to work. ENT exam 3 weeks ago unconclusive. Sinus clear, normal function of ear drums. Neurologist labeled TIA initially but continues to investigate with CTA.