It's 5am...my med sized beloved mixed breed female who's 10 yrs old, woke my hubby and I up (VERY unlike her) by shaking her head every so often (the noise of her collar/tags when she shakes). She's had ear infections off and on in the past...always related to allergies. She's also been bitten by a flea...the vet honestly just found one!...about a year ago...may have been around this time, don't remember for sure, but had a horribe allergic reaction that time. No ear infections or problems recently though. We had noticed earlier this week that my hubby's large dog, who she's best pals w/and is her constant companion, was itching excessively...so put some flea ointment on him, seems to be much better. Because she's sensitive and often is allergic easily...I wondered if I should put flea medication on her too? I looked at her ears...they aren't warm to the touch like they often are when she has a infection....cleaned them...could tell they were sensitive to her but not very dirty. Other than the head shaking, she's acting 100% normal...and has a cold noise and everything else seems fine. Could it be a flea reaction possibly? Or something else? We (like everyone out there!) are on a very tight budget these days...I really would like to solve this issue on my own, especially if it's minor, so to not spend the money at the Vet's office. Any advice?