Sorry to hear that. Hope it gets better for you soon! Are you able to get some moments of distraction from T and enjoy your vacation apart from the spike?
Tinnitus Talk Support Forum
With mine alot of noise causes it to spike temporarily due to the reactivity. Maybe something like that with driving and all the activities.
You need to Vacation Harder!! Lol 
@jimvee I'm trying to enjoy it and keep up with all of the activities planned. So far so good but T is spiking. I'm just over this damn condition. I didn't even get it from noise exposure. Just a stupid medication. I feel so cheated on life. :( Today I'm meeting celebrities and I can't enjoy it fully.
@Mo8409 Agreed... Stupid medication!