Hi everyone, I'm back again with yet another problem :( it seems like it's just been one thing after another with my poor dogs lately.
My current problem is with my 5 year old maltese Gizmo - he has suffered from a luxating patella since he was a puppy and has had intermittent bouts of tummy upset if even a minor change in food occurs (normally resulting in foamy yellow vomit). I posted a bit ago about trying to wean him off of wet dog food because of teeth issues and I have mentioned that I added a black lab puppy to our family roughly a month ago - Gizmo has been acting fine with these changes (besides the diarrhea scare a few weeks ago) up until around 5 days ago.
Since Friday he has seemed kind of... off, for lack of a better word. He wasn’t as energetic or as interested in his normal activities, like barking wildly at every little noise and following my every step. He definitely wasn't acting "sick," just kind of tired. I attributed this lack of energy to an ear infection that he has been suffering from for roughly two weeks. He has been given Bur Otic solution, Otomax, and on Monday he was given a BNT after the first two treatments didn’t work. Now, this morning when he was taken out to potty he seemed reluctant to walk down the stairs (something he has never had a problem with before) and yelped like crazy when the puppy merely brushed against him, and again when he accidentally brushed against my leg. By the time both dogs had pottied and were taken back upstairs, Gizmo was trembling all over and panting heavily. This is exactly how he acted during the bout of diarrhea so I wasn't extremely concerned, but since then he has defecated three times and none of them were particularly abnormal. Since this morning he has randomly had shaking fits, been panting heavily off and on, has had a “hunched” appearance, has shown a general lack of interest in every activity, and seems very sore. He seemed to be doing better earlier, but this improvement was short lived after he jumped off the couch to investigate the doorbell and instantly began yelping and again took up his hunched stance.
I simply don’t know what to do at this point! He has been to the vet roughly 4 times in the past month – he had booster vaccines, went in for an allergic reaction to said booster vaccines, went in for his ear infection, and then went in 2 days ago for his ear AGAIN! This isn’t counting the several times my new puppy has been to the vet – she needed shots, treatment for a skin condition on her ear, etc. I obviously have no aversion to taking my pets to the vet when I feel that it’s needed, but since he has had 2 checkups in a month I don’t know if taking him is worth the stress it places on him - he has SEVERE anxiety at the vet.
I am, however, going to call my vet tomorrow if his condition hasn’t improved, but I was just wondering if anyone has any idea what could be causing this? I’m sorry for the incredibly long explanation, but I just wanted you guys to know all the circumstances surrounding his condition.
Here is a summary of his symptoms again (just in case I left something out the first time):
-trembling, panting, favoring his back end (has difficulty sitting/laying down), pacing, lacking energy, ear infection that we just can’t determine the cause of, random bouts of yelping when running/jumping (which I have been limiting greatly since the first time it happened), and a “hunched” appearance.
He has been drinking water and eating with the same enthusiasm he has always had, but the food and water must be brought to him.
Any help would be greatly appreciated, I would at least like to have some idea of what this may be before I go into the vet so I can be somewhat prepared. Thanks in advance everyone!

