Without additional tests, additional blood work don't let Vet give other injections. Ask to run standard morphology, liver and kidney blood work. ASPT, ALT, uric acid . It should be helpful to give diagnosis.He is not swollen at all. No red, bloody marks on the shell. He peed and pooped last I think 3 days ago during a soak. He has eaten at least a little every day so far.
You need a competent reptile vet.
Where are you?
Is it possible that he could ate something poisonous?
OK, does he get regular sun? Have a UVB bulb? Calcium supplementation?
All that said if you like to have your tortie for a little longer please go and get those tests done and consutl with a good reptile specialist even if it's 3 hour drive from your home. One that can actually see your pet.Brian is correct, an xray would be a very good idea to assess bone density and presence of any stones or obstructive process, egg bound?
He can't breathe. Tortoises don't breathe through their mouth, consequently, when they need oxygen, they gasp in a big gulp through the mouth. I wonder if his nose is plugged. You can firmly squirt a couple of quick squirts of sterile saline up each nostril to try to clear them.
He's rubbing his face trying to get rid of whatever he thinks is plugging him up.
Also, his eyes are not open bright and wide.
Clear his nostrils and finish off the oral Baytril and see if he isn't getting better. Right now, breathing is more important than back leg paralysis.