Hello,
It sounds like you have done a pretty thorough work up. The places I think that you should look into are;
Repeat the blood work. It sounds like hyperthyroidism. I always check a free T4 on top of the thyroid T4. I also check a urine. If you haven’t sent a fecal to the lab too.
After that the ultrasound and X-rays are where I look.
You are still at the place where the diagnosis is eluding you. That’s where you need to focus.
PS. Just for the record I don’t love starting pred until you have a diagnosis. It can obscure your diagnostics.
Good luck. I hope this helps.
Hello. If you need anything sooner please call and ask to leave a message for me. Merry Christmas.
Dr Magnifico.
Hello thank you!! I tried calling back but the office may be busy. I can bring him anytime over the next 3 days, whatever you have available!
Update: thank you Doc!! The office was able to get me in on Thursday evening. I emailed records over along with video of his breathing sound. Have a blessed holiday, Merry Christmas!