I'm sorry to hear that your boy is going through this. Beahavioral changes that come and go like this often are indicitive of an underlying medical issue. One of the most common is thyroid issues. Outside of this, note if the angel eye, interceptor or frontline are new to his routine. Some dogs can manifest neurological type reactions to these. If this is suspected, consider discounting the products and adding them back in one at a time to see which may be the culprit. If you do not currently have a vet, consider contacting your local SPCA. Many have sliding scale (pay only what you can) services for testing. It woudl be in his best interest to have a basic blood work ran (CBC) along with thryoid to pinpoint the cause. I hope he's feeling better soon. -Robyn
Please click "ACCEPT" or if you need more information "REPLY"
PS- If you live in an area where ticks are present, you may also want to look iinto Lymes.