TShavo

Thanks for the reply. No outward signs of ear irritation, no pawing, shaking, etc. He slept well through the night, but would still pop his head up occassionally to stare out the bedroom door early on as if he heard something.

Hi, my greyhound has begun acting strangely the past two evenings. Evening #1 seemed to span 7-8pm, this evening has been 7pm-11pm(so far). He seems to be very sensitive to sound during these "episodes", which I've deducted from the following observations: 1) When let outside, he darted all over the yard with his ears perked up, looking in random directions. 2) He spooked easily while outside when a motorcycle passed miles in the distance. 3) When inside, he quickly paces from one end of the house to the other and attempts to look through windows/stare at doors as if a sound is coming through them. 4) He is whining and refuses to lay down more than 5 minutes. 5) He is very reluctant to go into his crate, and will begin to whine loudly, look towards the window, and even begin biting the crate to attempt getting out. Naturally, this is extremely uncharacteristic of him, has he is usually very mellow, sleeps for hours and is inseparable from his favorite couch, and has never even remotely given us issues with entering/staying in a crate. The only abnormal things he has experienced in the last week are: 1) I sprayed Ortho home defense barrier externally on house. Waited about 4 hours until it was 100% dry before exposure by letting him outside. (Early in the day before evening #1) 2) We took him on a 6 hour round trip day trip (day before evening #1) 3) He was exposed to 1-2 hours loud music from a band at a brewery. (Day before evening #1) I would like to rule out the pesticide, as I adhered to the safety instructions by letting it properly dry and also his behavior doesn't reflect poisoning. I am inclined to think perhaps he has suffered hearing damage due to loud noises, and may have something similar to tinnitus which is causing him to become paranoid over perceived sounds? I am at a complete loss because he didn't start acting this way until evening on both days. Perhaps bug noises at night are a factor? I can't locate any possible nearby noise sources that may be aggitating him. Thank you for any input/help you may be able to offer. Depending how the night goes/tomorrow goes I will be taking him to the vet for further diagnosis.