advice please ♡

My dogs back legs stopped working the other day from her arthritis and she is no longer able to walk. I took her to the vet and they suggested Adequan and so I ordered the medication but it’s not here yet. At the vet though, they told me her heart murmur had gotten worse from a 4 to a 6 and they prescribed me medication. The thing is the vet didn’t explain anything to me. She didn’t talk to me at all just typed on the computer and gave me an estimate for what was needed. Does her heart murmur increasing mean that she’s in heart failure? Is it time to consider putting her down? She’s still very energetic / wants to get up and walk / very expressive / still eats and drinks (has become way more picky though). I just don’t know what to do. Added the photo to show yall that she loves spending time with her cat.

My dogs back legs stopped working the other day from her arthritis and she is no longer able to walk. I took her to the vet and they suggested Adequan and so I ordered the medication but it’s not here yet. At the vet though, they told me her heart murmur had gotten worse from a 4 to a 6 and they prescribed me medication. The thing is the vet didn’t explain anything to me. She didn’t talk to me at all just typed on the computer and gave me an estimate for what was needed. Does her heart murmur increasing mean that she’s in heart failure? Is it time to consider putting her down? She’s still very energetic / wants to get up and walk / very expressive / still eats and drinks (has become way more picky though). I just don’t know what to do. Added the photo to show yall that she loves spending time with her cat.