I’m currently driving myself insane worrying about my gelding. So while I wait for our lameness evaluation on Tuesday, I figured I’d come here to see if I can get any ideas as to what could be causing this. I’ll dive right in with as much detail as I can give. Warning, it’ll probably be lengthy. I have a 6 year old AQHA gelding. He’s my barrel horse who’s just being seasoned. I bought him last July as an out of shape 5 year old with no issues. Rode him through the rest of the summer and fall, no problems. Boarded him over the winter and early spring with no sticking. He got to be a total crab about being saddled so I had my lameness vet/chiropractor out. He was all out of whack and super sore through his lower back and neck. Had him adjusted every four weeks from April until July with no improvement with how tight and sore he was in those areas. Vet suggested spinal X-rays once we had a few weeks that weren’t busy, but to continue with the chiro until then. I decided to switch his feed from Sentinel LT to Renew Gold. Vet came out first Thursday of August and said he was shocked with how good he felt. Tightness in the lower back had pretty much disappeared and the neck showed a lot of improvement. Except his stifles have started sticking, quite badly, in the past month or so. I’ll list the things I’ve noticed. Stumbling/losing hind end during a ride Upward transitions went horribly downhill Downward transitions stayed good Lateral work went from good to nearly impossible Powerful turns got weaker and more strung out Started picking up wrong leads. Prefers the left lead over the right. Went from soft in the bridle to pulling and hanging. Showed noticeable improvement in the amount of catching and severity when given Previcox Stepped up underneath himself more after icing Pita to keep weight on. Seems he keeps losing his butt even though the renew gold has helped his overall appearance Has sores from interfering on his hinds that refuse to heal Has been mildly refusing the gate at races which he’s never done before Now a list of things that have changed: Switched feed to renew gold Put on 5lbs of alfalfa cubes a day New saddle (end of May) Set back at the trailer a few times Set back and wrenched a hind shoe off and was a pita to shoe for the next two cycles Had a couple slips at barrels Spoke with vet at August appointment and he said trot poles, hills, and as many straight lines as I could to help him strengthen his muscles. But didn’t recommend I stop running him. I decided to run a previcox trial with him to see if it helped (Bute is too much for his tummy) which it did. Called vet with info and asked for a lameness evaluation. He said he’d run flexions and possible X-rays if I wanted. Appointment is Tuesday morning. So I guess the question is, does this sound like a muscle weakness issue, even though this is the best shape he’s been in? Possible injury? PSSM? Epm? Something else? Sorry this is so long, I’m just stressed and the worst when it comes to worrying.