Seeing as you got your tinnitus in ''mid 2015'' acording to your avatar, I guess that means June. I do not know if they accept patients beyond 6 months in the US.
Yeah, like I said... the timing is fuzzy. I've had periodic T for years... lasting only minutes (10 on the outside) at a time, maybe once per week at the peak.
Then just before the 2015 Christmas Holidays (Nov/Dec) it became constant. Loss of sleep and concentration, increase in my irritability, etc... so, I took a guess when I filled in my profile since I didn't have a real, single, "event" I could anchor it to :/